| NAME | MATCH NR. |
DESCRIPTION |
| Raak Energy saving lamps | 5316 | Log/tech slide chart of cardboard, 280x90x2 mm Front Scales: See Picture, Back Scales: See Picture |
| Raboma boorschijf | 2229 | Technical disc of plastic, 90x1 mm |
| Rabone & Sons Early model | 5096 | Generic slide rule of wood/metal, 2 feet mm Front Scales: scale 1/3 (1-33) [ A = CF A = B ] #scale 1/2 (1-22.5) and scale 1/4 (1-43) Back Scales: = on slide L = on body 12inch |
| Rabone & Sons Sector Made in England for Keuffel & Esser | 5097 | Sector of ivory, twice 305 mm Front Scales: 24inch Back Scales: See Picture |
| Racing research associates The Harvard Concentric Converter | 5043 | Disc |
| Radiac Calculator ABC - M1A1 | 5065 | Military disc |
| Ralo Calculator | 2230 | Log/tech slide rule of all wood, 137x38x10.5 mm Front Scales: E = C B = D |
| Rapidus Rechenscieber | 3663 | Generic slide rule of paper/wood, 150x29.5x7 mm Front Scales: K A = B CI C = D L |
| RCA 551 | 3888 | Generic slide rule of plastic, 176x28x7.5 mm Front Scales: K A = B S T C = D DI Back Scales: DF = CF CI C = D L |
| Rechengerät RG 44 German | 2077 | Military disc of plastic, 210x425x7 mm Front Scales: 1) 2) |
| Reddaway Belting and Pulley Calculator | 2767 | Log/tech slide rule of cardboard, 161x36x3 mm Front Scales: 4 scales |
| Reed Service Electronic Engineers | 2232 | Generic slide rule of wood/plastic, 298x42x13 mm Front Scales: 10inch / K A = B CI C = D L ] 26cm #D/L#, Back Scales: = S S&T T = |
| Reiss | 2237 | Military slide rule of plastic, 316x40x4 mm Front Scales: 1) 2) = sin tan FE = BE KA Back Scales: = sin sin/tan tan = D |
| Reiss | 2243 | Military slide rule of plastic, 299x50x7 mm Front Scales: 28cm / 1) 2) = sin tan FE = BE KA Back Scales: = sin sin/tan tan = |
| Reiss | 2244 | Military slide rule of metal, 296x40x6.5 mm Front Scales: 28cm 1:25000 / 1) 2) = S T FE = BE Ku Back Scales: = sin sin/tan tan = |
| Reiss | 2245 | Military slide rule of metal, 296x40x6.5 mm Front Scales: 28cm 1:25000 / 1) 2) = S T FE = BE Ku Back Scales: = sin sin/tg tg = |
| Reiss | 3685 | Military slide rule of plastic, 299x50x7 mm Front Scales: 28cm / 1) 2) = sin tan FE = BE KA Back Scales: = sin sin/tan tan = |
| Reiss | 3686 | Military slide rule of metal, 296x40x6.5 mm Front Scales: 28cm 1:25000 / 1) 2) = S T FE = BE Ku Back Scales: = sin sin/tg tg = |
| Reiss | 3687 | Military slide rule of metal, 296x40x6.5 mm Front Scales: 28cm 1:25000 / 1) 2) = S T FE = BE Ku Back Scales: = sin sin/tg tg = |
| Reiss | 3688 | Military slide rule of metal, 296x40x6.5 mm Front Scales: 28cm 1:25000 / 1) 2) = S T FE = BE Ku Back Scales: = sin sin/tan tan = |
| Reiss 3201 Rietz - Spezial | 5085 | Generic slide rule of metal |
| Reiss 3205 Electrical | 5086 | Chemistry slide rule of metal |
| Reiss 3209 C 7 | 2250 | Generic slide rule of metal, 148x32x3 mm Front Scales: 13cm / K A = B CI C = D L Back Scales: = sin tg = |
| Reiss 3214 Darmstadt Record | 3455 | Generic slide rule of plastic, 342x48x4 mm Front Scales: L K A = B CI C = D LL1 LL2 LL3 Back Scales: P S ST DF = CF CIF CI C = D T1 T2 DI |
| Reiss 3223 Progress | 2248 | Generic slide rule of metal, 319x33x4 mm Front Scales: A DF = CF CI C = D L Back Scales: T1 T2 = LL1 LL2 LL3 = D S |
| Reiss DDR Darmstadt | 2238 | Generic slide rule of metal, 300x33x4 mm Front Scales: K A = B CI C = D L Back Scales: cos sintg = LL1 LL2 LL3 = sin tg |
| Reiss DDR Darmstadt | 2239 | Generic slide rule of plastic, 160x45x4 mm Front Scales: 15cm / K A CF = DF CIF CI C = D P sin tan, Back Scales: = LL1 LL2 LL3 lg = |
| Reiss Ladung 1-4 | 5438 | Military slide rule of plastic, 340x48x4 mm Front Scales: m 4.Ladung 3.Ladung 2.Ladung 1.Ladung verringerte Ladung Back Scales: m 4.Ladung 2.Ladung 1.Ladung verringerte Ladung |
| Reiss Militairy rule | 3689 | Military slide rule of metal, 300x33x4 mm Front Scales: 1) 2) = S T FE = BE Ku Back Scales: = sin sin/tg tg = |
| Reiss Militairy rule | 3690 | Military slide rule of metal, 300x33x4 mm Front Scales: 1) 2) = S T FE = BE Ku Back Scales: = sin sin/tg tg = |
| Reiss Rietz | 2240 | Generic slide rule of plastic, 148x32x3 mm Front Scales: 13cm / K A = B CI C = D L Back Scales: = S T = |
| Relay 115 | 3464 | Generic slide rule of bamboo/plastic, 285x40x10 mm Front Scales: 25cm / K A = B CI C = D L ] 10inch Back Scales: = T2 T1 ST S = |
| Relay 151 JS 3 | 2256 | Generic slide rule of bamboo, 353x46.8x7 mm (1962) Front Scales: LL/0 L K A = B S ST T C = D DI P LL0, Back Scales: LL/1 LL/2 LL/3 DF = CF CIF CI C = D LL3 LL2 LL1 |
| Relay 551 | 3018 | Generic slide rule of plastic, 170x35x5 mm Front Scales: LL0 L K A = B S T C = D DI P LL0 Back Scales: LL1 LL2 LL3 DF = CF CIF CI C = D LL3 LL2 LL1 |
| Relay 650 CK-3 | 2257 | Generic slide rule of wood/plastic, 222x29x7 mm Front Scales: K A = B S T CI = D L Back Scales: DF = CF CIF C = D |
| Relay 80 DK 1 | 2254 | Generic slide rule of plastic, 227x24x8 mm Front Scales: A = B CI C = D |
| Reliance | 3868 | Generic slide rule of wood/plastic, 300x35x13 mm |
| Remix EMO Elektromodul Budapest | 5412 | Electrical disc of cardboard, 141x1 mm Front Scales: Items = C U Ø Back Scales: Items = V U F C % |
| Reyners Environmental Systems | 5280 | Log/tech slide chart of cardboard, 212x121x2.4 mm Front Scales: See Picture, Back Scales: See Picture |
| RHEI-TA Rechenstabe | 1994 | Generic slide rule of plastic, 280x33.5x5 mm Front Scales: A = B CI C = D K, Back Scales: = S L T = |
| Richardson 1917 | 2266 | Nautical slide rule of wood/plastic, 458x51x9 mm (1917) Front Scales: 1) = 2) 3) = 4), Back Scales: = 5) 6) = |
| Richter Rietz 11 | 3284 | Generic slide rule of plastic, 149x33x4 mm Front Scales: 13cm / K A = B CI C = D L Back Scales: = S S&T T = |
| Ricoh 1051 S | 5669 | Generic slide rule, 320x41x7 mm Front Scales: K A = B S T1 T2 C = D DI Back Scales: LL1 L DF = CF CIF CI C = D LL3 LL2 |
| Ricoh 151 | 5672 | Generic slide rule, 351x47x7 mm Front Scales: LL0 L K A = B S ST T C = D DI P LL0, Back Scales: LL1 LL2 LL3 DF = CF CIF CI C = D LL3 LL2 LL1 |
| Rietz 79 465 | 3283 | Generic slide rule of plastic, 149x31x3 mm Front Scales: 13cm / K A = B CI C = D L Back Scales: = S ST T = |
| Rijnja Balken en Plafondhangers | 2321 | Log/tech slide rule of cardboard/celluloid, 144x26x2 mm Front Scales: 1 = 2 3 = 4, Back Scales: = 5 6 = |
| Rijnja IJzeren Liggers DIL en NP profielen | 3097 | Steel beams slide rule of cardboard + celluloid, 218x44x3 mm Front Scales: A 1) = 2) 3) = 4) 5) 6) = 7) 8) Back Scales: = 9) = 10) 11) = |
| Rijnja Seehase Patent | 2855 | Generic slide rule of cardboard/celluloid, 145x26x4 mm Front Scales: A = B C = D |
| Rijnja Strackee Beton | 3095 | Concrete slide rule of brass, 219x44x3 mm Front Scales: 1) 2) 3) = 4) = 5) 6) = 7) |
| Rista 1 Rietz | 2272 | Generic slide rule of plastic, 296x39.2x4 mm Front Scales: 27cm / K A = B CI C = D L Back Scales: = S S&T T = |
| Rista 11 Rietz | 2277 | Generic slide rule of plastic, 150x33x4 mm Front Scales: 13cm / K A = B CI C = D L Back Scales: = S S&T T = |
| Rista 2 Electro | 2273 | Electrical slide rule of plastic, 295x43x4 mm Front Scales: 27cm / Motor K A = B CI C = D Volt T S Back Scales: = LL1 LL2 LL3 = |
| Rista 3 Darmstadt | 2275 | Generic slide rule of plastic, 293x42x4 mm Front Scales: 27cm / L K A = B CI C = D P T S Back Scales: = LL1 LL2 LL3 = |
| Riva Kil-o-metre | 3910 | Technical disc of plastic, 74x14 mm |
| Roberts gauging | 2281 | Alcohol slide rule of all wood, 304x26x22 mm (Before 1824) Front Scales: Many scales, Back Scales: Many scales |
| Roberts gauging | 2282 | Alcohol slide rule of all wood, 304x26x22 mm (Before 1824) Front Scales: Many scales, Back Scales: Many scales |
| Röhm Ermittlung der Reitstockkraft | 5262 | Technical slide chart of plastic, 195x75x2 mm Front Scales: See Picture, Back Scales: See Picture |
| Rollprint Ltd. Cameron Flange | 2284 | Technical slide chart of cardboard, 210x96x1.6 mm (1948) |
| Roos SR - 104 Company | 3864 | Generic slide rule of all wood, 270x28x9 mm Front Scales: A = B CI C = D K, Back Scales: = S L T = |
| Rotoflow Turboexpander/compressor | 2288 | Log/tech slide chart of cardboard, 212x80x2 mm (1979) Front Scales: 9 scales Back Scales: 4 scales |
| Royal 1051 | 2290 | Generic slide rule of plastic, 331x44x4 mm Front Scales: 25cm DF = CF CIF CI C = D A K |
| Royal 1053 | 2291 | Generic slide rule of plastic, 330x44.9x3.6 mm Front Scales: L K A = B CI C = D S ST T Back Scales: 25cm = S LL2 LL3 = 8inch |
| Royal 1081 | 2293 | Generic slide rule of plastic, 330x45.2x3.6 mm Front Scales: T1 T2 A = B BI CI C = D P S ST Back Scales: LL1 LL2 LL3 DF = CF CIF CI C = D L K |
| Russian | 2304 | Generic slide rule of wood/plastic, 150x27x6 mm Front Scales: K A = B CI C = D L Back Scales: = Sin S&T Tg = |
| Russian Prometeus 1937 r | 2306 | Generic slide rule of wood/plastic, 282x38x11 mm (1937) Front Scales: 25cm / K A = B C = D L ] 25cm Back Scales: = S S&T T = |
| Russian coios 1949r | 3645 | Generic slide rule of wood/plastic, 281x39x11 mm Front Scales: 25cm / K A = B CI C = D L ] 25cm Back Scales: = Sin S&T Tg = |
| Russian Disc HPH - 2 | 5073 | Log/tech disc |
| Russian Militairy 10M 1986 r | 3124 | Military slide rule of wood/plastic, 295x44x9 mm (1986-1988) Front Scales: 25cm / 1) K C 2) = 3) 4) 5) 6) = K 7) Back Scales: 8) 9) = 10) 11) 12) 13) 14) 15) = 16) 15) 17) 14) 15) |
| Russian roct 5161 72 1978r (wood) | 3132 | Generic slide rule of wood/plastic, 317x39x8 mm (1978) Front Scales: K A = B S ST T C = D DI Back Scales: L LL1 DF = CF CIF CI C = D LL3 LL2 |
| Russian roct 5161 72 1978r (wood) | 3644 | Generic slide rule of wood/plastic, 317x39x7 mm (1978) Front Scales: K A = B S ST T C = D DI Back Scales: L = = 25cm |
| Russian roct 5161 49 1953r | 2300 | Generic slide rule of wood/plastic, 280x39x11 mm Front Scales: 25cm / K A = B CI C = D L ] 25cm Back Scales: = Sin S&T Tg = |
| Russian roct 5161 49 1954r | 3646 | Generic slide rule of wood/plastic, 282x39x11 mm Front Scales: 25cm / K A = B CI C = D L ] 25cm Back Scales: = Sin S&T Tg = |
| Russian roct 5161 57 1961r | 5087 | Generic slide rule |
| Russian roct 5161 57 1962cr | 2307 | Generic slide rule of wood/plastic, 151x27.5x5.5 mm (1962) Front Scales: K A = B CI C = D L Back Scales: = Sin S&T Tg = |
| Russian roct 5161 57 1963c | 2308 | Generic slide rule of wood/plastic, 279x38x10.8 mm (1963) Front Scales: 25cm / K A = B CI C = D L ] 1:25 Back Scales: = Sin snt Tg = |
| Russian roct 5161 57 1964r | 3136 | Generic slide rule of wood/plastic, 278x39x11 mm (1964) Front Scales: 25cm / K A = B CI C = D L ] scale 1:2 Back Scales: = Sin S&T Tg = |
| Russian roct 5161 57 1968r | 2805 | Generic slide rule of wood/plastic, 279x38x10.8 mm (1968) Front Scales: 25cm / K A = B CI C = D L ] 25cm Back Scales: = Sin S&T Tg = |
| Russian roct 5161 57 1969r | 2310 | Generic slide rule of wood/plastic, 279x38.7x11.2 mm (1969) Front Scales: 25cm / K A = B CI C = D L ] 25cm Back Scales: = Sin S&T Tg = |
| Russian roct 5161 57 1969r | 3133 | Generic slide rule of wood/plastic, 149x27x6.3 mm (1) Front Scales: K A = B CI C = D L Back Scales: = Sin snt Tg = |
| Russian roct 5161 57 1973r | 2778 | Generic slide rule of wood/plastic, 281x38x11 mm (1973) Front Scales: 25cm / K A = B CI C = D LL3 ] LL2 Back Scales: = Sin S&T Tg = |
| Russian roct 5161 57 1971r | 3443 | Generic slide rule of wood/plastic, 318x39x7 mm (1971) Front Scales: K A = B S ST T C = D DI Back Scales: L LL1 DF = CF CIF CI C = D LL3 LL2 |
| Russian roct 5161 57 1972r | 3444 | Generic slide rule of wood/plastic, 279x40x11 mm (1972) Front Scales: 25cm / K A = B CI C = D L Back Scales: = Sin S&T Tg = Scale 1:25 |
| Russian roct 5161 72 1975r | 2296 | Generic slide rule of wood/plastic, 150x27.5x6 mm (1975) Front Scales: K A = B CI C = D, Back Scales: = S ST T = |
| Russian roct 5161 72 1978r | 2314 | Generic slide rule of PVC, 300x41x7 mm (1978) Front Scales: 27cm / K A = B CI C = D L Back Scales: = S ST T3 = |
| Russian roct 5161 72 1979r (PVC) | 2315 | Generic slide rule of plastic, 300x41x7 mm (1979) Front Scales: 27cm / K A = B CI C = D L Back Scales: = S ST T3 = |
| Russian roct 5161 72 1979r (wood) | 3647 | Generic slide rule of wood/plastic, 280x39x11 mm (1979) Front Scales: 25cm / K A = B CI C = D L ] 1:25 Back Scales: = Sin S&T Tg = |
| Russian roct 5161 72 1980r | 2316 | Generic slide rule of plastic, 300x50x7 mm (1980) Front Scales: 27cm / K A = B BI CI C = D S ST T3 L Back Scales: = LL1 LL2 LL3 = |
| Russian roct 5161 72 1986r | 2318 | Generic slide rule of plastic, 300x41x6.5 mm (1986) Front Scales: 27cm / K A = B CI C = D L Back Scales: = S ST T3 = |
| Russian roct 5161 72 1977r | 0505 | Generic slide rule of plastic, 300x34x7 mm (1977) Front Scales: 27cm / K A = B CI C = D L Back Scales: = S ST Ts = |
| Russian roct 5161 72 1978r | 2297 | Generic slide rule of plastic, 348x48x3.5 mm (1978) Front Scales: T1 K A = B CIF CI C = D ST S Back Scales: LL3 LL2 LL1 L |
| Russian roct 5161 72 1978r | 3445 | Generic slide rule of wood/plastic, 317x40 mm (1978) Front Scales: K A = B S ST T C = D DI Back Scales: L LL1 DF = CF CIF CI C = D LL3 LL2 |
| Russian roct 5161 72 1978r 250 - 14 | 5502 | Photography slide rule |