| Type | Title | Year | Publisher |
|---|---|---|---|
| Slot Machine (mechanical) | 🟩 Jackpot | 1929 | Iowa Novelty Co. [Cedar Rapids, IA, USA] |
| Trade Stimulator | 🟩 Little Perfection | 1923 | Iowa Novelty Co. [Cedar Rapids, IA, USA] |
| Slot Machine (mechanical) | 🟩 O.K. Mint Vender | 1923 | Iowa Novelty Co. [Cedar Rapids, IA, USA] |
| Slot Machine (mechanical) | 🟩 Operators Bell | 1925 | Iowa Novelty Co. [Cedar Rapids, IA, USA] |
| Trade Stimulator | 🟩 Target Practice | 1923 | Iowa Novelty Co. [Cedar Rapids, IA, USA] |