| Slot Machine |  O.K. Gum Vender | 1915 | Mills Novelty Co. Chicago, IL, USA |
| Slot Machine | Operators Baby Bell Vender Model 42 | 1915 | Watling Mfg. Co. Chicago, IL, USA |
| Slot Machine | Operators Baby Bell Model 43 | 1915 | Watling Mfg. Co. Chicago, IL, USA |
| Slot Machine | Premium Trader | 1915 | Mills Novelty Co. Chicago, IL, USA |
| Slot Machine | The Operators Bell Oak Case | 1915 | Mills Novelty Co. Chicago, IL, USA |
| Slot Machine | 1916 Bell | 1916 | Mills Novelty Co. Chicago, IL, USA |
| Slot Machine | Allies Flags | 1916 | Automatic Novelty Co. London, England |
| Slot Machine | Operators Bell | 1916 | Industry Novelty Co. Chicago, IL, USA |
| Slot Machine | The Operators Bell | 1916 | Mills Novelty Co. Chicago, IL, USA |
| Slot Machine | The Operators Bell | 1916 | Caille Bros. Co., The Detroit, MI, USA |
| Slot Machine | Floor O.K. Gum Vender | 1917 | Mills Novelty Co. Chicago, IL, USA |
| Slot Machine | Floor O.K. Gum Vender Musical model | 1917 | Mills Novelty Co. Chicago, IL, USA |
| Slot Machine | O.K. Gum Vender | 1917 | Mills Novelty Co. Chicago, IL, USA |
| Slot Machine | The Operators Bell | 1917 | Mills Novelty Co. Chicago, IL, USA |
| Slot Machine | Counter O.K. Gum Vender | 1919 | Mills Novelty Co. Chicago, IL, USA |
| Slot Machine | I'X | 191? | Unknown France |
| Slot Machine | Le Gracieux | 191? | Auguste, L. France |
| Slot Machine | Ludiator N° 31 | 191? | Ullmann, C. & J. Paris, France |
| Slot Machine | Roulette Suresnoise | 191? | Unknown France |
| Slot Machine | Excelsior | 1920 | Watling Mfg. Co. Chicago, IL, USA |
| Slot Machine | Le Billard Vertical | 1920 | Unknown |
| Slot Machine | Liberty Commercial | 1920 | Unknown |
| Slot Machine | O.K. Counter Vender Model 53 | 1920 | Watling Mfg. Co. Chicago, IL, USA |
| Slot Machine | O.K. Gum Trade and Check Vending Machine Model 101 | 1920 | Silver King Novelty Co. Indianapolis, IN, USA |
| Slot Machine | O.K. Jackpot | 1920 | Watling Mfg. Co. Chicago, IL, USA |
| Slot Machine | O.K. Jackpot Gum Vender Model 55 | 1920 | Watling Mfg. Co. Chicago, IL, USA |
| Slot Machine | Rigoletto | 1920 | Jentzsch & Meerz, Max Leipzig, Germany |
| Slot Machine | The Operators Bell Spearmint | 1920 | Mills Novelty Co. Chicago, IL, USA |
| Slot Machine | Victory Bell | 1920 | Caille Bros. Co., The Detroit, MI, USA |
| Slot Machine | Victory Bell Gum Vender | 1920 | Caille Bros. Co., The Detroit, MI, USA |
| Slot Machine | O.K. Vender | 1921 | Mills Novelty Co. Chicago, IL, USA |
| Slot Machine | Counter O.K. Vender | 1922 | Mills Novelty Co. Chicago, IL, USA |
| Slot Machine | Counter Totalizer | 1922 | Mills Novelty Co. Chicago, IL, USA |
| Slot Machine | Gooseneck | 1922 | Service Novelty Co. |
| Slot Machine | Mills O.K. Mint and Gum Vender | 1922 | Mills Novelty Co. Chicago, IL, USA |
| Slot Machine | O.K. Mint Vender | 1922 | Silver King Novelty Co. Indianapolis, IN, USA |
| Slot Machine | Operators Bell | 1922 | Jennings & Co., O.D. Chicago, IL, USA |
| Slot Machine | Operators Bell | 1922 | Fey & Co., Charles San Francisco, CA, USA |
| Slot Machine | Regular O.K. | 1922 | Mills Novelty Co. Chicago, IL, USA |
| Slot Machine | The Operators Bell Owl | 1922 | Mills Novelty Co. Chicago, IL, USA |
