| Type | Title | Year | Publisher |
|---|---|---|---|
| Trade Stimulator | 🟩 Front Vender Model 27 | 1925 | Williams Mfg., O.A. [Indianapolis, IN, USA] |
| Trade Stimulator | 🟩 Junior Bell | 1926 | Williams Mfg., O.A. [Indianapolis, IN, USA] |
| Slot Machine (mechanical) | 🟩 Oliver | 1906 | Williams Mfg., O.A. [Indianapolis, IN, USA] |
| Trade Stimulator | 🟩 The Adder | 1925 | Williams Mfg., O.A. [Indianapolis, IN, USA] |