| Slot Machine |  The Mills Chicago Check | 1901 | Mills Novelty Co. Chicago, IL, USA |
| Slot Machine | The Mills Chicago Check Improved model | 1904 | Mills Novelty Co. Chicago, IL, USA |
| Slot Machine | The Mills Chicago Check Musical model | 1901 | Mills Novelty Co. Chicago, IL, USA |
| Slot Machine | The Mills Chicago Check Musical Improved model | 1904 | Mills Novelty Co. Chicago, IL, USA |
| Slot Machine | The Mills Chicago Export | 1903 | Mills Novelty Co. Chicago, IL, USA |
| Slot Machine | The Mills Chicago Fortune | 1903 | Mills Novelty Co. Chicago, IL, USA |
| Slot Machine | The Mills Chicago Improved model | 1903 | Mills Novelty Co. Chicago, IL, USA |
| Slot Machine | The Mills Chicago Musical model | 1900 | Mills Novelty Co. Chicago, IL, USA |
| Slot Machine | The Mills Chicago Musical model Export | 1910 | Mills Novelty Co. Chicago, IL, USA |
| Slot Machine | The Mills Chicago Musical Improved model | 1903 | Mills Novelty Co. Chicago, IL, USA |
| Slot Machine | The Mills Duplex | 1899 | Mills Novelty Co. Chicago, IL, USA |
| Slot Machine | The Mills Duplex Improved model | 1904 | Mills Novelty Co. Chicago, IL, USA |
| Slot Machine | The Mills Duplex Musical model | 1899 | Mills Novelty Co. Chicago, IL, USA |
| Slot Machine | The Operators Bell | 1907 | Mills Novelty Co. Chicago, IL, USA |
| Slot Machine | The Operators Bell | 1916 | Mills Novelty Co. Chicago, IL, USA |
| Slot Machine | The Operators Bell | 1917 | Mills Novelty Co. Chicago, IL, USA |
| Slot Machine | The Operators Bell Bell Owl | 1926 | Mills Novelty Co. Chicago, IL, USA |
| Slot Machine | The Operators Bell Vender | 1926 | Mills Novelty Co. Chicago, IL, USA |
| Slot Machine | The Operators Bell Bullseye | 1926 | Mills Novelty Co. Chicago, IL, USA |
| Slot Machine | The Operators Bell Free Play | 1930 | Mills Novelty Co. Chicago, IL, USA |
| Slot Machine | The Operators Bell Iron Case | 1910 | Mills Novelty Co. Chicago, IL, USA |
| Slot Machine | The Operators Bell Oak Case | 1915 | Mills Novelty Co. Chicago, IL, USA |
| Slot Machine | The Operators Bell Owl | 1922 | Mills Novelty Co. Chicago, IL, USA |
| Slot Machine | The Operators Bell Spearmint | 1920 | Mills Novelty Co. Chicago, IL, USA |
| Slot Machine | The Owl | 1897 | Mills Novelty Co. Chicago, IL, USA |
| Slot Machine | The Owl Jr. | 1899 | Mills Novelty Co. Chicago, IL, USA |
| Slot Machine | The Owl Jr. Improved model | 1904 | Mills Novelty Co. Chicago, IL, USA |
| Slot Machine | The Owl 1904 model | 1904 | Mills Novelty Co. Chicago, IL, USA |
| Slot Machine | The Owl Improved model | 1898 | Mills Novelty Co. Chicago, IL, USA |
| Slot Machine | The Owl Musical model | 1897 | Mills Novelty Co. Chicago, IL, USA |
| Slot Machine | Three Bells | 1941 | Mills Novelty Co. Chicago, IL, USA |
| Slot Machine | Totem | 1911 | Mills Novelty Co. Chicago, IL, USA |
| Slot Machine | Totem Floor Gum Vender | 1911 | Mills Novelty Co. Chicago, IL, USA |
| Slot Machine | Totem Gum Vender | 1911 | Mills Novelty Co. Chicago, IL, USA |
| Slot Machine | Vest Pocket Model 420-C | 1940 | Mills Novelty Co. Chicago, IL, USA |
| Slot Machine | Vest Pocket Model 420 | 1938 | Mills Novelty Co. Chicago, IL, USA |
| Slot Machine | Vest Pocket Model 421-C | 194? | Mills Novelty Co. Chicago, IL, USA |
| Slot Machine | Vest Pocket Model 421 | 194? | Mills Novelty Co. Chicago, IL, USA |
| Slot Machine | Vest Pocket Model 422-C | 194? | Mills Novelty Co. Chicago, IL, USA |
| Slot Machine | Vest Pocket Model 422 | 1939 | Mills Novelty Co. Chicago, IL, USA |
