| Pinball |  Imo-Spurt | 1951 | Löwen Automaten Bingen, Germany |
| Pinball | Jalopy | 1951 | Williams Mfg. Co. Chicago, IL, USA |
| Slot Machine | Jubilee | 1951 | Nutt & Muddle Australia |
| Pinball | King Pin | 1951 | Chicago Coin Machine Co. IL, USA |
| Bingo | Leader | 1951 | United Mfg. Co. UMC Chicago, IL, USA |
| Pinball | Mermaid Model 50 | 1951 | Gottlieb & Co., D. Chicago, IL, USA |
| Pinball | Minstrel Man Model 47 | 1951 | Gottlieb & Co., D. Chicago, IL, USA |
| Pinball | Nags | 1951 | Williams Mfg. Co. Chicago, IL, USA |
| Pinball | Niagara Model 60 | 1951 | Gottlieb & Co., D. Chicago, IL, USA |
| Dedicated Computer | Nimrod | 1951 | Ferranti, Ltd. |
| Coin-op Misc. game | Norwa Rondo | 1951 | Lochmann, Karl Berlin, Germany |
| Coin-op Misc. game | Norwa-Flottweg | 1951 | Norwa Wilhelmshaven, Germany |
| Coin-op Misc. game | Norwa-Rex | 1951 | Norwa Wilhelmshaven, Germany |
| Coin-op Misc. game | Pasch | 1951 | Bergmann & Co., Theodor Hamburg, Germany |
| Pinball | Pin Ball Poker Model 59 | 1951 | Gottlieb & Co., D. Chicago, IL, USA |
| Pinball | Play Ball! | 1951 | Chicago Coin Machine Co. IL, USA |
| Bowler | Prize Bowler | 1951 | United Mfg. Co. UMC Chicago, IL, USA |
| Slot Machine | Reitz | 1951 | Reitz, J. Düsseldorf, Germany |
| Slot Machine | Reitz Front vender | 1951 | Reitz, J. Düsseldorf, Germany |
| Slot Machine | Rhein-Silber-Express | 1951 | POS Automatenbau |
| Pinball | Rose-Bowl Model 55 | 1951 | Gottlieb & Co., D. Chicago, IL, USA |
| Slot Machine | Rotola | 1951 | Ruhr Automaten |
| Pinball | Route 66 Model 53 | 1951 | Gottlieb & Co., D. Chicago, IL, USA |
| Pinball | Sea Jockeys | 1951 | Williams Mfg. Co. Chicago, IL, USA |
| Pachinko | Shimizu | 1951 | Nishijin Japan |
| Pinball | Shoo Shoo | 1951 | Williams Mfg. Co. Chicago, IL, USA |
| Pinball | Shoot the Moon Model 59 | 1951 | Williams Mfg. Co. Chicago, IL, USA |
| Bowler | Shuffle Line | 1951 | Bally Mfg. Co. Chicago, IL, USA |
| Bowler | Shuffle-cade Twin Skee Alley | 1951 | United Mfg. Co. UMC Chicago, IL, USA |
| Pinball | Snooks | 1951 | Williams Mfg. Co. Chicago, IL, USA |
| Pinball | Spark Plugs | 1951 | Williams Mfg. Co. Chicago, IL, USA |
| Pinball | Sunshine Park Model 542 | 1951 | Bally Mfg. Co. Chicago, IL, USA |
| Redemption mechanical game | Super | 1951 | Sidebottom Novelty Co. |
| Pinball | Super World Series Model 47 | 1951 | Williams Mfg. Co. Chicago, IL, USA |
| Slot Machine | The Comet Miner | 1951 | Character Mfg. Co. Reno, NV, USA |
| Pinball | Thing | 1951 | Chicago Coin Machine Co. IL, USA |
| Slot Machine | Treff-Rotor | 1951 | Löwen Automaten Bingen, Germany |
| Coin-op Misc. game | Trink Trink - Brüderlein Trink | 1951 | Stahlhofen-Steinhoff |
| Pinball | Turf | 1951 | Bergmann & Co., Theodor Hamburg, Germany |
| Bowler | Twin Shuffle Alley | 1951 | United Mfg. Co. UMC Chicago, IL, USA |
