| NAME | MATCH NR. |
DESCRIPTION |
| BAB Werbemittel | 5353 | By B.A.B. Werbemittel, medical disc of plastic, 142x1.2 mm Front Scales: seepicture, Back Scales: See Picture |
| Baedeker Calorieënteller | 0483 | Medical disc of cardboard, 110x130x2 mm |
| Ball Rietz | 0484 | Generic slide rule of wood/plastic, 279x36x11 mm Front Scales: 26cm / K A = B C = D L ] 10inch Back Scales: = S ST T = |
| Barbotheu | 5736 | Generic slide rule of all wood, 270 mm Front Scales: 26cm / A = B C = D ] 27cm #27-54cm# |
| Barbotheu | 5758 | Generic slide rule of wood/celluloid, 280 mm Front Scales: 26cm / A = B C = D ] 27cm #28-55cm# |
| Barbotheu JD 403 | 5732 | Generic slide rule of wood/plastic, 250x38x11.5 mm Front Scales: A = a c b = B C Back Scales: = So Log To = |
| Batori Speed Fuel Jet Computer | 3872 | Aviation disc of metal, 120x6 x195 mm |
| Bausch & Lomb Vertex Power Lens Computer | 3472 | Photography disc of metal, 110x1 mm |
| BDF Zonwijzer | 5410 | Medical disc of cardboard, 120x07 mm Front Scales: UV-Inde = Skin type Minutes Factor Time |
| Beers Diamond | 0486 | Log/tech disc of plastic, 90x120x1.5 mm Front Scales: 1) = 2) = 3), Back Scales: 4) = 5) = 6) |
| Begemann K.N.M. | 0487 | Technical disc of plastic, 120x2 mm Front Scales: 1) = 2) = 3) 4) = 5) Back Scales: 6) = 7) 8) = 9) |
| Begemann Pompen Rekenlat | 2768 | Log/tech slide rule of cardboard, 173x48x2.5 mm |
| Begemann Pompen Rekenlat | 5444 | Log/tech slide rule of cardboard, 173x48x2.5 mm |
| Beko Condensate Calculator | 3568 | Technical disc of plastic, 131x1 mm |
| Bell Performance Computer 206 A | 2892 | Aviation disc of cardboard/celluloid, 127x3 mm Front Scales: Tables, Back Scales: 1) 2) 3) |
| Bell Performance Computer OH - 58A | 0488 | Aviation disc of plastic, 128x2 mm |
| Below Futter Rechenschieber Eiweiss | 3507 | Slide rule, 520x130x18 mm (1949) |
| Below Futter Rechenschieber Latest model 51A | 0489 | Technical slide rule of plastic, 280x73x23 mm (March 1951) |
| Below Futter Rechenschieber Prototype disc version | 3511 | Disc |
| Below Futter Rechenschieber Prototype of Model 51A | 3510 | Slide rule, 275x135x4 mm |
| Below Futter Rechenschieber Stärkewert | 3508 | Slide rule, 520x130x18 mm (1949) |
| Below Futter Rechenschieber White model | 3509 | Slide rule, 270x160x8 mm (May 1950) |
| Benzin - Rechner | 5346 | Log/tech slide chart of cardboard, 108x149x1 mm Front Scales: See Picture, Back Scales: See Picture |
| BEPAM IRMO Carbures Metalliques | 3879 | By B.E.P.A.M Nancy, technical slide rule/disc of plastic, 186x155x14 mm |
| Berg Hydrauliek | 5308 | By vd Berg, technical slide chart of cardboard, 143x170x0.7 mm Front Scales: See Picture, Back Scales: See Picture |
| Beseler 7279 Projection | 5095 | Generic slide rule of plastic |
| Betta Enfield Height and Air Speed Mark. II A 6B / 166 | 1739 | Aviation disc of metal/bakelite, 145x7.5 mm |
| Billeter's Julius Rechentafel | 0490 | Generic instrument of metal/glass, 290x81x0.8 mm Front Scales: 1) 2) 3) 4) = 5) 6) 7) 8) = 1) 2) 3) 4) |
| Bio Slide | 0491 | Medical slide rule of plastic, 360x64x11 mm |
| BIPM Mud Weight | 0493 | Technical slide c of plastic, 190x85x2.5 mm (1966) |
| BIPM Optimum Drilling Technique | 0492 | Log/tech slide chart of plastic, 252x112x3 mm |
| Blundell MK. 2 Artillery 10" Mils | 2914 | Military slide rule of PVC, 330x47x4 mm Front Scales: ST S A = B C = D T |
| Blundell & Harling 0490.45 Cocktail MixerF | 3545 | Food and drink slide chart of plastic, 146x83x2.5 mm |
| Blundell 0490.75 Concrete Volume computer | 5374 | Concrete slide chart of plastic, 200x46x2 mm (1970) Front Scales: See Picture, Back Scales: See Picture |
| Blundell 100 | 3828 | Generic slide rule of plastic, 139.5x27.5x4 mm Front Scales: A = B C = D |
| Blundell 1066 Speed Time Distance | 0546 | Nautical slide chart of PVC, 176x47x2 mm Front Scales: 1) = 2) 3) = 4), Back Scales: = 5) = |
| Blundell 1084 Dead Reckoning Portland | 0545 | Nautical disc of PVC, 133x154x4 mm (1976) Front Scales: 1) = 2), Back Scales: 3) = 4) |
| Blundell 300 Academy | 2922 | Generic slide rule of co-polymer |
| Blundell 302 Log - log Academy | 0531 | Generic slide rule of PVC, 287x46x4 mm Front Scales: L LL2 LL3 A = B CI C = D S T ST |
| Blundell 303 Rietz Academy | 0532 | Generic slide rule of PVC, 287x46.5x4 mm (1958-1970) Front Scales: L K A = B CI C = D S ST T |
| Blundell 304 Darmstadt Academy | 2923 | Generic slide rule of PVC |
| Blundell 305 C Electro Academy | 0533 | Generic slide rule of PVC, 287x465x35 mm (1958-1970) Front Scales: 1) EFF GEN.MOT. A = B CI C = D K LL2 LL3, Back Scales: = S L T = |
| Blundell 308 Accountants Academy | 2925 | Financial slide rule of PVC |
| Blundell 310 Academy | 2905 | Generic disc of PVC, 762 mm (1958-1970) Front Scales: D = C CI A K |
| Blundell 310 Descal | 2927 | Generic disc of PVC, 762 mm (1958-1970) Front Scales: L D = C CI A K |
| Blundell 312 Simplified Rietz Academy | 2926 | Generic slide rule of PVC |
| Blundell 315 Descal | 3153 | Generic disc of PVC, 196x10 mm Front Scales: LL3 LL2 LL1 D = C CI A K |
| Blundell 316 Descal | 0534 | Generic disc of PVC, 196x10 mm Front Scales: C = D |
| Blundell 401 Rietz Omega | 2939 | Generic slide rule of PVC, 297x42x9 mm (1958-1970) Front Scales: 11inch / K A = B CI C = D L Back Scales: = S ST T = |
| Blundell 402 Log - log Omega | 2940 | Generic slide rule of PVC |
| Blundell 403 Darmstadt Omega | 2942 | Generic slide rule of PVC |
| Blundell 404 Electro Omega | 2928 | Generic slide rule of PVC |
| Blundell 405 Omega | 2758 | Generic slide rule of PVC, 300x42x8 mm (1958-1970) Front Scales: 11inch / A = B C = D |
| Blundell 407 Technico Omega | 2934 | Generic slide rule of PVC |
| Blundell 409 Mercantile Omega | 2933 | Financial slide rule of PVC |
| Blundell 601 Rietz Omega | 0536 | Generic slide rule of PVC, 159x33x6 mm (1958-1970) Front Scales: 6inch / K A = B CI C = D L Back Scales: = S S&T T = |
| Blundell 605 Omega | 2930 | Generic slide rule of plastic, 160x33x4 mm Front Scales: 6inch / A = B C = D |
| Blundell 606 Omega | 3915 | Generic slide rule of plastic, 159x33x5 mm Front Scales: 6in / A = B CI C = D Back Scales: = S S&T T = |
| Blundell 800 | 2759 | Generic slide rule of PVC, 306x36x4 mm (1970-1982) Front Scales: A = B C = D |
| Blundell 802 Log - log Academy | 0537 | Generic slide rule of PVC, 330x46.5x4 mm Front Scales: K LL2 LL3 A = B L CI C = D S T ST |
| Blundell 803 P (Projection) | 0539 | Generic projection of perspex, 363x60x5 mm Front Scales: L K A = B CI C = D S ST T |
| Blundell 803 Rietz Academy | 0538 | Generic slide rule of PVC, 331x47x45 mm Front Scales: L K A = B CI C = D S T ST |
| Blundell 808 Accountants Academy | 2909 | Generic slide rule of PVC, 329x46x4 mm (1970-1982) Front Scales: S LL1 DF = CF IL IR C = D LL3 LL2 Back Scales: M = T = |
| Blundell 812 Classmate Academy | 0540 | Generic slide rule of PVC, 172x37x4.5 mm (1970-1982) Front Scales: S T A = B CI C = D K L |
| Blundell 813 Classmate Academy | 0541 | Generic slide rule of PVC, 307x37x4.5 mm (1970-1982) Front Scales: S T A = B CI C = D K L |
| Blundell 904 Academy | 0542 | Generic slide rule of PVC, 319x37x4.3 mm (1975-82) Front Scales: ST A = B CI C = D S T Back Scales: K L DF = CF CIF C = D LL2 LL3 |
| Blundell 905 Academy | 0543 | Generic slide rule of PVC, 329x46.5x4 mm (1975-1982) Front Scales: LL01 LL02 LL03 A = B L CI C = D LL3 LL2 LL1, Back Scales: K P ST DF = CF CIF CI C = D T S |
| Blundell AG 1 | 2970 | Generic slide rule of co-polymer |
| Blundell AG 2 | 0511 | Generic slide rule of co-polymer, 286x37x7 mm Front Scales: 10inch / K A = B R C = D M Back Scales: 26cm |
| Blundell AG 5 RIETZ | 2971 | Generic slide rule of co-polymer, 286x37x8 mm (1949-1958) Front Scales: 10inch / K A = B R C = D M Back Scales: 26cm = S ST T = |
| Blundell AL 6 | 0513 | Generic slide rule of co-polymer, 284x37x8 mm (1949-1958) Front Scales: 25cm / U.L. A = B R C = D L.L. Back Scales: = S ST T = 10inch |
| Blundell and Harling P 3695 Valve sizing rule | 5789 | Log/tech slide chart |
| Blundell B.P - OIL Fuel Viscosity-Temp. | 0497 | Technical disc of PVC, 144x1 mm Front Scales: 1) = 2) 3) = 4) 5) = 6) 7) 8) 9) 10) |
| Blundell Balloon BRL Mark IV A | 0328 | Meteorology slide rule of PVC, 628x62x12 mm Front Scales: 1) 2) 3) 4) = K 6) 7) = 8) 9) |
| Blundell Bearing Rate Mark 1 Model 0 | 0496 | Technical slide rule of PVC, 368x63x6.5 mm Front Scales: 1) = 2) 3) = 4) |
| Blundell C 24 Face Cost & Profit Reckoner | 2986 | Slide rule of PVC |
| Blundell Cardiovascular Risk Calculator | 0498 | Medical disc of PVC, 127x1 mm Front Scales: 1) = 2) + window |
| Blundell Conversion 0490.37 | 0503 | Conversion slide chart of PVC, 190x77x2 mm (1994) Front Scales: Side A: 20 scales Back Scales: Side B: 180 mm 18 scales 7inch |
| Blundell DM 1 Rietz Instruction rule | 2947 | Generic slide rule of wood/plastic, 1520 mm Front Scales: K A = B R C = D M Back Scales: = S ST T = |
| Blundell E 13 c Electricians | 2870 | Electrical slide rule of PVC |
| Blundell E 25 C | 3661 | Technical slide rule of plastic, 289x41.5x8.5 mm Front Scales: 25cm / LL2 A = B R C = D LL3 K #V GEN. EFF. MOT. EFF. GEN. MOT.#, Back Scales: = sin lg tg = |
| Blundell E 25 Electricians | 2983 | Electrical slide rule of PVC |
| Blundell E 3 Electrical | 2953 | Electrical slide rule of bakelite |
| Blundell Exchange Rate converter | 3158 | Financial disc of plastic, 95x1.2 mm Front Scales: 1) = 2) = 3) |
| Blundell F 5100 Black Body | 3021 | Radioactivity slide rule of PVC, 454x90x10 mm Front Scales: g f 1) e = h j i l k m = d c b a Back Scales: = n p o r q s = |
| Blundell FC 3540 Fisher Valve | 0556 | Log/tech slide rule of PVC, 330x46x4.5 mm (1967) Front Scales: P %QC2 = P1 1) 2) 3) C1 Q = Cg %QC1 Back Scales: P %QC2 = P1 4) Q = Cv Cg |
| Blundell G 1 Students | 2951 | Generic slide rule of bakelite |
| Blundell G 2 | 0512 | Generic slide rule of bakelite, 285x31x7.5 mm (1947-1949) Front Scales: K A = B Rec C = D L |
| Blundell G 22/2 | 2918 | Generic slide rule of PVC, 306x32x7 mm (1950) Front Scales: A = B C = D |
| Blundell H Slide Rule | 2993 | Technical slide rule of PVC, 173x37x4 mm (1968) Front Scales: 1 2 = 3 4 = 5 6 7 8 Back Scales: 9 10 = 11 12 = 13 14 15 |
| Blundell Hercules C.Mk. 1 6B / 1112682 |
0515 | Aviation disc of PVC, 178x2.5 mm Front Scales: 1) 2) = 3) |
| Blundell Holophane Illumination Calculator | 3148 | Technical slide rule of bakelite, 290x49x8 mm Front Scales: 1) 2) = 3) 4) 5) 6) = 7) 8) |
| Blundell Humidity | 2906 | Hydrology slide rule of PVC, 33.8x50x5 mm Front Scales: (4) = (6)(5)(3) (3A) (2B)(2C) (2)(2A) = (1) (1B) (1A), Back Scales: (7)123 = C = D TA TB |
| Blundell Hygrorule | 2693 | Meteorology slide rule of PVC, 141x31x5 mm Front Scales: 1) = 2) = 3), Back Scales: = 4) = |
| Blundell L 4 | 3017 | Generic slide rule of bakelite, 284x32x8.5mm (1947-1949) Front Scales: U.L. A = B Rec C = D L.L. |
| Blundell L 6 | 0516 | Generic slide rule of bakelite, 285x30x7 mm (1947-1949) Front Scales: UL A = B Rec C = D LL Back Scales: = S S&T T = |
| Blundell Lens Calculator | 3157 | Photography disc of plastic, 95x1.5 mm Front Scales: 1) = 2) 3) = 4) = 5) 6) |
| Blundell Lens Calculator Osprey T.V. | 0500 | Technical disc of PVC, 86.5x1 mm Front Scales: 1) 2) = 3) + 1 window with 4) + 5) |
| Blundell Lincoln MK. 2 | 1577 | Aviation slide rule of bakeliteplastic, 343x63.5x10 mm Front Scales: Many scales see picture Back Scales: Many scales see picture page 2 |
| Blundell Management Calculator | 3160 | Technical disc of plastic, 140x1 mm (1994) Front Scales: 1) = 2) |
| Blundell MK 1 Lifeboat Sight Computer 9/4531 | 0520 | Nautical slide chart of PVC, 280x80x25 mm (1956) Front Scales: 1) 2) 3) = 4) =, Back Scales: = 4) = |
| Blundell MK 1 Mortar 81 mm | 0526 | Military disc of PVC, 127x1 mm (1988) Front Scales: 0 1 2 3 4 5 6 |
| Blundell Mk 2 Artillery Omega 10" Mils | 0521 | Generic slide rule of PVC, 298x42x8.5 mm (1958-1970) Front Scales: 1/50000 / A = B C = D Back Scales: = S ST T = |
| Blundell MK 3 Artillery 10" | 0522 | Generic slide rule of PVC, 299x41x8 mm (1958-1970) Front Scales: A = B C = D, Back Scales: = S ST T = |
| Blundell MK 6 Humidity | 0517 | Technical slide rule of PVC, 287x47x9 mm Front Scales: (4) = (5) (3) (3A) (2B) (2C) = (1) (1B) 1(A) Back Scales: (7) 1) 2) = (6) (3) (3A) (2) (2A) = |
| Blundell N 52 (Navigator) Janus | 0525 | Generic slide rule of PVC, 330x55x5 mm Front Scales: S1 A = B TA TB ST S C = D K L Back Scales: 1) 2) 3) 4) 5) = 6) 7) CI 8) 9) C = D SM KM |
| Blundell NL 11 - 95 | 0523 | Generic disc of PVC, 95x2 mm (1995) Front Scales: L D = C CI A |
| Blundell O.S. 686 A Calculator | 2921 | Technical slide rule of PVC, 134x47x3.8 mm (1959) Front Scales: 1) = 2) = 3) |
| Blundell P 10 | 3156 | Generic slide rule of co-polymer, 160x33.5x6.5 mm (1948-1958) Front Scales: 6inch / CUBE A = B REC C = D MAN Back Scales: = S S&T T = 15cm |
| Blundell P 1365 Flow of Water in Pipes | 2916 | Technical slide rule of PVC, 175x47x3.8 mm Front Scales: X = Y W = Z V |
| Blundell P 14 | 2977 | Generic slide rule of co-polymer |
| Blundell P 15 | 2978 | Generic slide rule of co-polymer, 160x32x4.2 mm (1948-1958) Front Scales: 6inch / A = B REC C = D Back Scales: = S S&T T = 15cm |
| Blundell P 1553 Armstrong Calculator | 2811 | Log/tech slide rule of PVC, 288x47x3.5 mm Front Scales: S A = B P C = D F |
| Blundell P 1644 Armstrong Calculator | 3407 | Log/tech slide rule of PVC, 298x52x8 mm Front Scales: 11inch / S A = B P C = D F Back Scales: 1) 2) |
| Blundell P 17 | 0524 | Generic slide rule of co-polymer, 160x33.8x4.6 mm Front Scales: 6inch / U.L. A = B R C = D L.L. Back Scales: = S. S.&T. T. = 15cm |
| Blundell P 1732 - A Fisher Valve Mark III | 0547 | Log/tech slide rule of PVC, 254x37x3.5 mm (1963) Front Scales: VC P D = C 1) 2) Q = Cv 3) Kv Back Scales: 4) P1 Pc = P 5) 6) 7) 8) Qs Qg = CG CS 9) |
| Blundell P 1843 Nunn Blood Gas Predictor | 0548 | Medical slide chart of PVC, 280x57x3 mm (1962) Front Scales: 1) = 2) = 3) 4) 5) 6) = 7) 8) = 9) Back Scales: = 10) = = 11) 12) 13) 14) = 15) |
| Blundell P 2297 Torpedo Spreading Slide Rule | 3440 | Military slide rule of plastic, 317x162x8 mm Front Scales: 1) = 2) 3) = 4) 5) = 6) 7) = 8) |
| Blundell P 2808 Ultrasonic | 0550 | Log/tech slide rule of PVC, 184x65.6x8 mm (1967) Front Scales: A = B C = D E = F G = H I Back Scales: = J K = L M = N = O 5inch 12cm |
| Blundell P 3241 Rapid Glaze Calculator | 0551 | Technical disc of PVC, 144x2 mm (1969) Front Scales: A C = B D |
| Blundell P 3259 | 0552 | Technical slide rule of PVC, 343x49.5x3.5 mm (1969) Front Scales: 10inch A B = C D E = F G 1) Back Scales: 250mm H I = J K L = M N O 2) |
| Blundell P 3357 Thermal Expansion of Pipelines | 5396 | Log/tech slide chart of plastic, 228x48x1.4 mm Front Scales: See Picture, Back Scales: See Picture |
| Blundell P 3483 Tarrant Hydraulic Slide Rule | 0555 | Technical slide rule of PVC, 290x47x4 mm Front Scales: 1) 2) 3) = 4) 5) 6) = 7) |
| Blundell P 3512 Textile | 2992 | Technical slide rule of PVC, 298x43x9 mm Front Scales: 28cm = 1) = 2) te tb 3) = 4) |
| Blundell P 3706 Nylon Tube Friction Loss Calculator | 3408 | Log/tech slide rule of PVC, 338x49x4 mm Front Scales: 1) = 2) 3) = 4) |
| Blundell P 3969-77 Textile | 2961 | Technical slide rule of PVC, 400x108x8.5 mm Front Scales: 1) 2) 3) 4) = 5) 5) = 6) = 7) 8) = = 9) 10) 11) 12) = 13) 14) 15) 16) |
| Blundell P 4366 Ultrasonic | 2912 | Log/tech slide rule of PVC, 245x50x5 mm (1967) Front Scales: E A D = C B F G = H I Back Scales: 5inch 12cm L = K J N = M O |
| Blundell P 4463 Holophane Illuminance and Angle Calculator | 2913 | Technical slide rule of PVC, 320x37x4 mm Front Scales: 1) 2) = 3) 4)5) 6) = 7) 8) 9) Back Scales: 10) = 11) 12) = 13) 14) |
| Blundell P 4603 MK III Orifice Slide Rule | 2915 | Technical slide rule of PVC, 318x37x4 mm Front Scales: m d/D = h rs = N Back Scales: m d/D = hm Ss = Nm |
| Blundell P 4740 IFD Cell Reactor | 2994 | Technical slide rule of PVC, 650x133x8 mm |
| Blundell P 4743 Fisher Valve | 2987 | Log/tech slide rule of PVC, 330x46x4.5 mm (1976) Front Scales: P %QC2 = P1 1) 2) 3) C1 Q = Cg %QC1 Back Scales: P %QC2 = P1 4) Q = Cv Cg |
| Blundell P 4843 Hydraulic | 2920 | Technical slide rule of PVC, 330x46x4 mm (9/78) Front Scales: A B1 B2 = C2 C1 E2 1) 2) 3) E1 = H 4) Back Scales: B1 B3 = D1 5) 6) D2 F2 F1 = J |
| Blundell P 5088 The H Slide Rule | 0557 | Technical slide rule of PVC, 328x46x4 mm (1968) Front Scales: 1 2 = 3 4 = 5 6 7 8 Back Scales: 9 10 = 11 12 = 13 14 15 |
| Blundell P 5527 Roof Pitch Indicator | 5347 | Technical slide chart of plastic, 94x103x1.7 mm (1995) Front Scales: See Picture, Back Scales: See Picture |
| Blundell P 5597 Hydro Aluminium | 0560 | Technical disc of PVC, 178x1.5 mm Front Scales: 1) = 2) + 2 windows Back Scales: 3) 4) + 1 window |
| Blundell P 5637 BOC Hospitality Division | 3159 | Technical slide chart of plastic, 750x360x6 mm Front Scales: 1) = 2) = 3) = 4) = 5) = 6) = 7) |
| Blundell P 5705 Torque Calculator | 0561 | Technical disc of PVC, 147x1.5 mm (1990) Front Scales: 1) 2) = 3) 4) 5) = 2 windows |
| Blundell P 5709 Radiography Mk. VI | 0562 | Technical disc of PVC, 134x3 mm (1954) Front Scales: 1) 2) = 3) 4) 5) 6) 7) 8) = 9) 10) |
| Blundell P 5731 Note Tracker | 3426 | Music slide chart of plastic, 280x115x1.5 mm Front Scales: Many scales, Back Scales: Many scales |
| Blundell P 5798 BMI Calculator | 0563 | Medical disc of PVC, 95x1 mm (1992) Front Scales: 1) = 2) = 3) |
| Blundell P 5852 Fuel Oil Preheat | 0564 | Technical disc of PVC, 156x1 mm (1993) Front Scales: 1) = 2) 3) = 4) 5) = 6) 7) 8) 9) 10) Back Scales: 11) = 9 windows |
| Blundell P 5897 Dalton Aviation Computer | 0565 | Aviation disc of PVC, 115x134x6 mm Front Scales: 1) 2) 3) = 4) 5) + 4 windows + 6) 7) Back Scales: 8) = 9) 10) |
| Blundell P 5931 Zeneca | 3162 | Log/tech disc of plastic, 89x210x1 mm |
| Blundell P 5939 Metric Imperial Price Converter | 0502 | Technical slide chart of PVC, 190x103x2.5 mm (1995) Front Scales: Side A: 1) = 2) = 3) = 4) = 5) = 6) = 7) = 8) =, Back Scales: Side B: 9) = 10) = 11) = 12) = 13) = 14) = 15) = 16) = |
| Blundell P 8 | 0519 | Generic slide rule of bakelite, 159x255x5 mm (1947-1949) Front Scales: A = B CI C = D Back Scales: 6inch = = 15cm |
| Blundell Paper Machine Production Calculator | 3913 | Log/tech slide rule of plastic, 232x52.5x2.5 mm |
| Blundell Photographic Interpreters MK II | 2908 | Photography slide rule of PVC, 335x50x5 mm Front Scales: A = B CI ST C = D S TA TB Back Scales: 1) 2) = 3) 4) 5) = 6) |
| Blundell Popular no. 1 | 3155 | Generic slide rule of PVC, 284x42x3 mm Front Scales: L K A = B CI C = D S ST T |
| Blundell Protractor, 6 inch Ivorine 'A' MK. IV | 3146 | Technical protractor of ivory/metal, 152x51x2 mm Front Scales: Various see picture Back Scales: Various see picture |
| Blundell Radiac no. 1 MK 2 | 2781 | Military disc of PVC, 126x1.5 mm Front Scales: 1) = 2) = 3) |
| Blundell Radiac Pat. No. 644944 | 0504 | Log/tech slide rule of PVC, 300x66.5x9 mm Front Scales: = A1 A2 = B1 B2 = C1 C2 = D Back Scales: = F1 F2 = = E1 E2 = |
| Blundell Reproduction | 0569 | Log/tech disc of PVC, 126x1.3 mm Front Scales: A = B 1) |
| Blundell S 100 | 3833 | Generic slide rule of plastic, 139.5x27.5x4 mm Front Scales: A = B C = D |
| Blundell S 125 | 3829 | Generic slide rule of plastic, 151x32x2 mm Front Scales: CUBE A = B REC. C = D MAN. |
| Blundell S 143 - 10 | 0528 | Generic slide rule of PVC, 305x36x4 mm (1970-1982) Front Scales: K A = B CI C = D L |
| Blundell S 143 - 10 (Factory model) | 3163 | For fabrication plate of metal, 1250x250x3 mm (1970-1982) Front Scales: K A = B CI C = D L |
| Blundell S 143 - 20 | 0529 | Generic slide rule of PVC, 172x36x4 mm Front Scales: K A = B CI C = D L |
| Blundell S 143 / 5 E | 2919 | Generic slide rule of PVC, 149x27x2.8 mm (1970-1982) Front Scales: K A = B CI C = D L |
| Blundell S 150 - 10 | 0495 | Generic slide rule of PVC, 306x36.8x4 mm Front Scales: S T A = B CI C = D K L |
| Blundell S 150 - 10 P (Projection) | 2988 | Generic projection of perspex, 366x56x5 mm Front Scales: S T A = B CI C = D K L |
| Blundell S 150 - 10 Staedtler | 3257 | Generic slide rule of PVC |
| Blundell S 150 - 20 | 0530 | Generic slide rule of PVC, 174x37x4 mm (1970-1982) Front Scales: S T A = B CI C = D K L |
| Blundell Shackleton MR MK. 3 | 2344 | Aviation slide rule of bakeliteplastic, 344x64.5x11 mm (1978) Front Scales: Many scales see picture Back Scales: Many scales see picture page 2 |
| Blundell Students no. 1 | 3149 | Generic slide rule of co-polymer |
| Blundell T 11 Technicians | 2954 | Slide rule of co-polymer |
| Blundell T 12 Technicians | 2955 | Generic slide rule of PVC |
| Blundell T 20 Technicians | 2969 | Generic slide rule of bakeliteco-polymer |
| Blundell T 50 Janus | 2910 | Generic slide rule of PVC, 341x45x5.2 mm (1952 1957-1965) Front Scales: L P A = B T ST S = D DI K, Back Scales: LL01 LL02 LL03 DF = CF CIF CI C = D LL3 LL2 LL1 |
| Blundell Tank Capacity Computer | 3409 | Log/tech slide chart of plastic, 187x48x2.2 mm Front Scales: 1) 2) = 3) 4) = 5) |
| Blundell Turning guide Mitsubishi Carbide | 3161 | Technical disc of plastic, 146x1 mm Front Scales: 1) 2) 3) 4) |
| Blundell U 7 | 2968 | Generic slide rule of bakelite |
| Blundell V.F. 0129 | 0527 | Generic slide rule of PVC, 285x36.5x6.4 mm Front Scales: 10inch / A = B C = D Back Scales: = S ST T = |
| Blundell Valve Sizing and Flow Foxboro | 0506 | Technical slide rule of PVC, 151x49x3.5 mm Front Scales: A) = B) C) = E), Back Scales: = B C = |
| Blundell Vector Slide Rule | 3419 | Mathematics complex of plastic/metal |
| Blundell Victor K MK. 2 | 2636 | Aviation slide rule of PVC, 342x63x10 mm Front Scales: Many scales see picture Back Scales: Many scales see picture page 2 |
| Blundell Vulcan B. MK. 2 C.G. | 0508 | Aviation slide rule of bakeliteplastic, 342x63x10 mm Front Scales: Many scales see picture Back Scales: Many scales see picture page 2 |
| Blundell Vulcan B/K. MK. 2 C.G. | 0509 | Aviation slide rule of bakeliteplastic, 342x63x10 mm Front Scales: Many scales see picture Back Scales: Many scales see picture page 2 |
| Blundell W.H. Smith Log - log trig | 0501 | Generic slide rule of PVC, 330x46x4 mm (1970-1982) Front Scales: K LL2 LL3 A = B L CI C = D S T ST |
| Blundell W.H. Smith Rietz | 0507 | Generic slide rule of PVC, 330x47x4 mm Front Scales: L K A = B CI C = D S T ST |
| Blundell W.H. Smith Simplified Rietz | 2911 | Generic slide rule of PVC, 173x36x4.2 mm (1970-1982) Front Scales: K A = B CI C = D L |
| Board Plotting M10 | 0570 | Aviation disc of plastic, 222x222x3 mm |
| Bofa Boortypen | 5275 | Technical slide chart of cardboard, 168x79x1.3 mm Front Scales: See Picture, Back Scales: See Picture |
| Bofa Schuiftabel voor toerentallen per minuut | 5258 | Technical slide chart of cardboard, 169x78x1.4 mm Front Scales: See Picture, Back Scales: See Picture |
| Bols Cocktail slide | 5331 | Drinks slide chart of plastic, 107x220x1.3 mm Front Scales: See Picture, Back Scales: See Picture |
| Bolts UNC Normal en Heavy Series 1955 | 0571 | By Mesc, technical slide chart of cardboard, 223x97x1.2 mm (1955) |
| Bolts UNC Normal en Heavy Series 1962 | 0572 | By Mesc, technical slide chart of plastic, 186x93x1.8 mm (1962) |
| Bombing Angle Computor 9 / 3602 | 0573 | Aviation disc of plastic, 204x204x3 mm (1959) Front Scales: 1) = 2) = 3) = 4) |
| Bonwitt Patent 19639/43 | 5745 | Generic disc of plastic, 127 mm Front Scales: LL2 A = B C = D LL3 Back Scales: 5°Sin1 Sin2 5°Tg1 Tg2 |
| Boots Ringplan Standard 5" | 2814 | Generic slide rule of plastic, 150x37x4.3 mm Front Scales: 13cm / A = B CI C = D K \ 5inch Back Scales: = S L T = |
| Bosch Hydraulics | 5790 | Log/tech slide chart |
| Bosch Pneumatic | 5791 | Log/tech slide chart |
| Bosch Règle à calcule pour condensateurs | 3907 | Log/tech disc of plastic, 99.5x1.5 mm |
| Brand Charles concrete | 3027 | Concrete disc of perspex, 270x7 mm Front Scales: 1) 2) 3), Back Scales: 4) 5) 6) 7) 8) |
| Breitling 1884 | 5643 | Nautical disc |
| Brigon Reglette (Kalkulator) | 0575 | Log/tech slide chart of plastic, 226x69x3 mm |
| Brinkman Asea control | 5276 | Technical slide chart of plastic/cardboard, 218x69x1.3 mm Front Scales: See Picture, Back Scales: See Picture |
| Brinkman Ticino Motor beveiligings schakelaars | 5253 | Electrical slide chart of cardboard, 208x73x1 mm Front Scales: See Picture, Back Scales: See Picture |
| Bristol Hercules 100 Issue 1 Fuel Consumption Indicator | 0576 | Aviation disc of metal, 157x172x3 mm Front Scales: 1) 2) 3) = 4) 5) 6) 7) 8) = 9) |
| British Engraving and Nameplate MFG Cambridge University Aircraft Navigation | 3874 | Aviation disc of celluloid, 107x1.5 mm |
| British made Protractor | 3435 | Technical protractor of ivory, 153x44x1 mm Front Scales: 14cm Various 5inch, Back Scales: Various |
| British Riding Club Vaccination Calculator | 5407 | Medical slide rule of plastic, 108x1 mm (1997) Front Scales: Months |
| British Slide Rule Company Technical Standard, The Slide Rule British Made | 2070 | Generic slide rule of wood/plastic, 301x45x14 mm Front Scales: 10inch / M A = B C = D N \ 27cm Back Scales: = S S.T. T = |
| Brown Boveri Motorentechniek | 5270 | Technical slide chart of plastic/cardboard, 210x78x1.2 mm Front Scales: See Picture, Back Scales: See Picture |
| Brown Boveri Schieber für Motoren | 0579 | Technical disc of metal, 102x1.2 mm Front Scales: 1) = 2) 3) = 4) = 5) Back Scales: 6) = 8) 9) 10) 11) |
| Bruning 2401 | 5777 | Generic slide rule of plastic |
| Bruning 2420 | 0581 | By Charles Brunning, generic slide rule of plastic, 279x40x9 mm Front Scales: 10inch / A = B CI C = D K \ 25cm Back Scales: = S L T = |
| Bundesministerium Benzinverbrauchstest | 5322 | Technical slide chart of cardboard, 110x150x0.8 mm Front Scales: See Picture, Back Scales: See Picture |
| Bush Screw Conveyer Calculator | 2750 | Log/tech slide chart of plastic, 266x115x2 mm |