| Coin-op Misc. game |  Mardi Gras | 193? | Western Products, Inc. Chicago, IL, USA |
| Coin-op Misc. game | Marksman | 193? | PAMCO Pacific Amusement Mfg. Co. Chicago, IL, USA |
| Coin-op Misc. game | Master Play-Boy | 193? | Gottlieb & Co., D. Chicago, IL, USA |
| Bowler | Match Pool | 193? | Genco, Inc. Chicago, IL, USA |
| Coin-op Misc. game | Mecca | 193? | WJC Vending Co. New York, NY, USA |
| Coin-op Misc. game | Mercury Jr. | 193? | Bally Mfg. Co. Chicago, IL, USA |
| Coin-op Misc. game | Merry-Go-Round | 193? | ABT Mfg. Co. Adler Bechtol Tratsch Chicago, IL, USA |
| Coin-op Misc. game | Mexette | 193? | Neutron Engineering & Mfg. Co. |
| Trade Stimulator | Miami | 193? | Chicago Coin Machine Co. IL, USA |
| Coin-op Misc. game | Miami Bar | 193? | Rotor Table Games, Inc. New York, NY, USA |
| Coin-op Misc. game | Miami Beach | 193? | Stoner Mfg. Corp. Aurora, IL, USA |
| Coin-op Misc. game | Miami Derby | 193? | Miami Derby Mfg. Co., Inc. |
| Coin-op Misc. game | Miami Digger | 193? | Bartlett, W.D. |
| Coin-op Misc. game | Midway | 193? | Daval Mfg. Co. Chicago, IL, USA |
| Coin-op Misc. game | Miggles | 193? | Fairchild, Inc., C.D. Syracuse, NY, USA |
| Coin-op Misc. game | Mills Pay Table | 193? | Mills Novelty Co. Chicago, IL, USA |
| Pool Table | Mini-O-Pool | 193? | Mini-O-Pool Co. Chicago, IL, USA |
| Bowler | Miniature Bowling Aley | 193? | ESCO Exhibit Supply Co. Chicago, IL, USA |
| Coin-op Misc. game | Miss Liberty | 193? | Rock-Ola Mfg. Corp. Chicago, IL, USA |
| Coin-op Misc. game | Mitzi | 193? | Bally Mfg. Co. Chicago, IL, USA |
| Coin-op Misc. game | Monte Carlo | 193? | Rock-Ola Mfg. Corp. Chicago, IL, USA |
| Coin-op Misc. game | Moon-Hi | 193? | Great Northern Chair Co. |
| Coin-op Misc. game | Moto-Scoot | 193? | Walker Sales Co. Fort Worth, TX, USA |
| Coin-op Misc. game | Motordrome | 193? | Jennings & Co., O.D. Chicago, IL, USA |
| Coin-op Misc. game | Mount Royal | 193? | Bally Mfg. Co. Chicago, IL, USA |
| Coin-op Misc. game | Mr. Chips | 193? | Genco, Inc. Chicago, IL, USA |
| Gun game | Multi-O-Lite | 193? | Seeburg Corp., J.P. Chicago, IL, USA |
| Coin-op Misc. game | Multiple Racer | 193? | Jennings & Co., O.D. Chicago, IL, USA |
| Coin-op Misc. game | Musketeers | 193? | Elliott Products Co. L.B. Elliott |
| Slot Machine | Mutkapajatso | 193? | Automaatti Teollisuus OY Finland |
| Coin-op Misc. game | Mystery Six | 193? | Cross & Co., R. |
| Coin-op Misc. game | National Baseball | 193? | Scientific Machine Corp. Brooklyn, NY, USA |
| Coin-op Misc. game | Natural | 193? | Genco, Inc. Chicago, IL, USA |
| Coin-op Misc. game | Navy | 193? | Keeney & Co., J.H. Chicago, IL, USA |
| Coin-op Misc. game | Neighbors | 193? | Mills Novelty Co. Chicago, IL, USA |
| Coin-op Misc. game | New Century | 193? | Canadian Games Mfg. Co. |
| Coin-op Misc. game | New Century | 193? | Genco, Inc. Chicago, IL, USA |
| Coin-op Misc. game | New Century Special | 193? | Genco, Inc. Chicago, IL, USA |
| Coin-op Misc. game | New Deal | 193? | Elliott Products Co. L.B. Elliott |
| Coin-op Misc. game | New Deal | 193? | Field Mfg. Corp. Peoria, IL, USA |
