| NAME | MATCH NR. |
DESCRIPTION |
| Maandblad Doe het Zelf Schroeven schijf | 5319 | By Doe het Zelf, technical slide chart of cardboard, 197x89x0.6 mm Front Scales: See Picture, Back Scales: See Picture |
| Maier's Drehbare Sternkarte | 2882 | Astronomy disc of cardboard, 179x179x2.2 mm Front Scales: 1) = 2) 3) |
| Man Water levering (Water supply) | 5337 | By de Man, technical disc of cardboard, 100x150x1 mm Front Scales: See Picture, Back Scales: See Picture |
| Mandt Feldspat | 5320 | Technical slide chart of cardboard, 94x215x1 mm Front Scales: See Picture, Back Scales: See Picture |
| Marci Univerbel Calculateur Vitrage/ étagères | 5654 | Technical slide chart of cardboard, 220x100x3 mm Front Scales: See picture Back Scales: See picture |
| Markant 510 | 3900 | Generic slide rule of plastic, 151x27x3.5 mm Front Scales: A = B CI C = D K |
| Masoneilan Cv-Wert Scala | 5301 | Log/tech slide chart of cardboard, 296x160x1.2 mm Front Scales: See Picture, Back Scales: See Picture |
| Masoneilan Valve Size Calculator | 2752 | Log/tech slide chart of plastic, 216x55x3 mm |
| Mattern M-2 | 1700 | Aviation disc of metal, 47x194x3 mm (1949) Front Scales: 1) = 2) = 3) 4) Back Scales: 5) = 6) 7) = 8) 9) |
| MDS London | 1701 | By M.D.S. London, generic slide rule of wood/plastic, 280x32x11 mm Front Scales: 10inch / A = B C = D |
| Mear Audco Rockwell Gas Flow Calculator | 1703 | Log/tech disc of plastic, 144x5 mm |
| Mear Comprehensive Conversion Calculator | 1702 | Conversion disc of plastic, 146x4.5 mm (1978) |
| Mear Comprehensive Conversion Calculator M1 | 1704 | Conversion disc of plastic, 146x4.5 mm |
| Mear Conversion Calculator | 2755 | Conversion disc of plastic, 127x5 mm |
| Mear Pipe Flow Calculator | 1706 | Log/tech disc of plastic, 142x6 mm Front Scales: 1) 2) 3) = 4) 5) = 6) 7) 8) Back Scales: 9) 10) 11) 12) = 13) 14) |
| Medische Electronica Portanje | 5380 | Medical rule no cursor no slide of plastic, 160x40x0.4 mm Front Scales: See Picture, Back Scales: See Picture |
| Megaprint Benzine verbruikscijfers | 5334 | Technical slide chart of cardboard, 200x195x1 mm Front Scales: See Picture, Back Scales: See Picture |
| Megapromotions Afstandstabel | 1707 | Technical slide chart of cardboard, 109x159x0.8 mm (1986) |
| Meierhofer Swissair Navigator 11054 | 1709 | Aviation disc of metal, 105x6 mm Front Scales: 1) = 2) 3) = 4) 5) = 6), Back Scales: 7) = 8) |
| Mercator B 3 Computor | 3512 | Aviation disc of aluminium, 120x268x3.5 mm |
| Mercator B 4 Computor | 1722 | Aviation disc of aluminium, 120x268x3.5 mm Front Scales: 1) C = D 2) 3) = 4) = 5) = 6) = 7) Back Scales: 8) 9) = 10) |
| Mercator Computor Type 100 | 3513 | Aviation disc of aluminium, 120x268x3.5 mm |
| Merchants Graphic Profit Finder | 3908 | By Graphic Calculator Co, log/tech disc of plastic, 102x1 mm (1948) |
| Mercura La Regle Commerciale | 3653 | Financial disc of aluminium, 80x2 mm |
| Mercura Type 5.5 - 7 RC | 2825 | Financial disc of metal, 90x2.6 mm Front Scales: C = %% 1)2), Back Scales: C = %% 3)4) |
| Messdreieck 34 Re - Ge - 68 | 2060 | Military instrument of metal |
| Metallograph Musketry Model of 1918 | 1735 | Military slide rule of metal, 121x29x2.2 mm (1918) Front Scales: = 1) 2) = 3), Back Scales: 4) 5) = - = 6) |
| Microcom Modem Selector | 5340 | Computer slide chart of cardboard, 234x102x1 mm (1991) Front Scales: See Picture, Back Scales: See Picture |
| MIG Flight computer | 3603 | Aviation disc on body of plastic, 200x180x15 mm |
| Mignon 770 | 1726 | Generic slide rule of plastic, 150x33x3.6 mm Front Scales: A = B C = D |
| Militairy Japan 1943 | 3516 | Disc |
| Military NR - 8 | 3691 | Aviation slide rule of wood/celluloid, 230x38x7 mm Front Scales: Degrees = Degrees Sinus 1) = Tangens Entfernungen (km), Back Scales: 2) = Zeit Temp. = Höhe |
| Mindling Adding machine | 5058 | Calculate instrument |
| Minefield Calculator | 5260 | Military slide chart of plastic/cardboard, 170x116x1.3 mm Front Scales: See Picture, Back Scales: See Picture |
| Moker Heizflachenrechner | 2769 | Log/tech slide chart of metal, 223x6.8x2.3 mm |
| Molter "Late" model | 2018 | Generic disc of metal/celluloid, 65x6 mm (1923, 1925) Front Scales: A C = D, Back Scales: n1 n3 tg. Sin. Log. |
| Molter "Very Early" model | 3422 | Generic disc of metal/celluloid, 58x3.8 mm (1923, 1925) Front Scales: A C = D, Back Scales: K C L |
| Motoren Installations-Helfer Siemens | 5398 | By Siemens, technical slide chart of aluminium, 210x52x1 mm Front Scales: See Picture, Back Scales: See Picture |
| Multor Addimult Sumax - E | 3880 | By Made in Western Germany, generic disc of plastic/metal, 89x3 mm |
| Murphy The Weightmeter | 1734 | By George Murphy Inc, conversion disc of plastic, 75x1 mm (1914) |
| Myron Paint Calculator | 1730 | Log/tech slide rule of plastic, 162x29x2 mm (1952) Front Scales: A = B C = D |