| Trade Stimulator |  Dandy Vender | 1930 | Groetchen Tool & Mfg. Co. Chicago, IL, USA |
| Trade Stimulator | Coin Divider Dandy Vender | 1932 | Groetchen Tool & Mfg. Co. Chicago, IL, USA |
| Trade Stimulator | Dandy Vender Jak Pot | 1932 | Groetchen Tool & Mfg. Co. Chicago, IL, USA |
| Coin-op Misc. game | Grand Canyon | 1932 | Groetchen Tool & Mfg. Co. Chicago, IL, USA |
| Trade Stimulator | New Dandy Vender | 1932 | Groetchen Tool & Mfg. Co. Chicago, IL, USA |
| Trade Stimulator | New Dandy Vender Concealed Jack Pot | 1932 | Groetchen Tool & Mfg. Co. Chicago, IL, USA |
| Trade Stimulator | Pok-O-Reel | 1932 | Groetchen Tool & Mfg. Co. Chicago, IL, USA |
| Trade Stimulator | Veeder Counter Dandy Vender | 1932 | Groetchen Tool & Mfg. Co. Chicago, IL, USA |
| Trade Stimulator | Pok-O-Reel Side Gum Vender | 1933 | Groetchen Tool & Mfg. Co. Chicago, IL, USA |
| Trade Stimulator | Silent Dandy Vender | 1933 | Groetchen Tool & Mfg. Co. Chicago, IL, USA |
| Trade Stimulator | Skill Jump | 1933 | Groetchen Tool & Mfg. Co. Chicago, IL, USA |
| Trade Stimulator | Solitaire | 1933 | Groetchen Tool & Mfg. Co. Chicago, IL, USA |
| Trade Stimulator | Solitaire Gum Vender | 1933 | Groetchen Tool & Mfg. Co. Chicago, IL, USA |
| Trade Stimulator | 21 Vender | 1934 | Groetchen Tool & Mfg. Co. Chicago, IL, USA |
| Trade Stimulator | Beer Dandy Vender | 1934 | Groetchen Tool & Mfg. Co. Chicago, IL, USA |
| Trade Stimulator | Cigarettes Dandy Vender | 1934 | Groetchen Tool & Mfg. Co. Chicago, IL, USA |
| Trade Stimulator | Dice-o-Matic Vender | 1934 | Groetchen Tool & Mfg. Co. Chicago, IL, USA |
| Trade Stimulator | Free Play Dandy Vender | 1934 | Groetchen Tool & Mfg. Co. Chicago, IL, USA |
| Trade Stimulator | Gold Rush Calendar model | 1934 | Groetchen Tool & Mfg. Co. Chicago, IL, USA |
| Trade Stimulator | Gold Rush Fruit-Dial model | 1934 | Groetchen Tool & Mfg. Co. Chicago, IL, USA |
| Trade Stimulator | Jackpot Beer Dandy Vender | 1934 | Groetchen Tool & Mfg. Co. Chicago, IL, USA |
| Trade Stimulator | Jackpot Cigarettes Dandy Vender | 1934 | Groetchen Tool & Mfg. Co. Chicago, IL, USA |
| Trade Stimulator | Jackpot Free Play Dandy Vender | 1934 | Groetchen Tool & Mfg. Co. Chicago, IL, USA |
| Trade Stimulator | Pok-O-Reel Triplex Jak-Pot | 1934 | Groetchen Tool & Mfg. Co. Chicago, IL, USA |
| Trade Stimulator | Pok-O-Reel Triplex Cherry Bell model | 1934 | Groetchen Tool & Mfg. Co. Chicago, IL, USA |
| Trade Stimulator | Pok-O-Reel Triplex Mechanical Punch Board model | 1934 | Groetchen Tool & Mfg. Co. Chicago, IL, USA |
| Trade Stimulator | Pok-O-Reel Triplex Standard model | 1934 | Groetchen Tool & Mfg. Co. Chicago, IL, USA |
| Trade Stimulator | Roto-Matic Vender | 1934 | Groetchen Tool & Mfg. Co. Chicago, IL, USA |
| Trade Stimulator | Zig-Zag | 1934 | Groetchen Tool & Mfg. Co. Chicago, IL, USA |
| Trade Stimulator | Penny Cigarette Machine | 1935 | Groetchen Tool & Mfg. Co. Chicago, IL, USA |
| Trade Stimulator | Penny Cigarette Machine Gum Vender | 1935 | Groetchen Tool & Mfg. Co. Chicago, IL, USA |
| Trade Stimulator | Penny Smoke | 1935 | Groetchen Tool & Mfg. Co. Chicago, IL, USA |
| Trade Stimulator | Penny Smoke Veeder Counter | 1935 | Groetchen Tool & Mfg. Co. Chicago, IL, USA |
| Trade Stimulator | Tavern | 1935 | Groetchen Tool & Mfg. Co. Chicago, IL, USA |
| Trade Stimulator | The Fortune Teller | 1935 | Groetchen Tool & Mfg. Co. Chicago, IL, USA |
| Trade Stimulator | Turf Flash | 1935 | Groetchen Tool & Mfg. Co. Chicago, IL, USA |
| Slot Machine | Columbia Standard model | 1936 | Groetchen Tool & Mfg. Co. Chicago, IL, USA |
| Trade Stimulator | High Stakes | 1936 | Groetchen Tool & Mfg. Co. Chicago, IL, USA |
| Trade Stimulator | High Tension | 1936 | Groetchen Tool & Mfg. Co. Chicago, IL, USA |
| Trade Stimulator | Pok-O-Reel | 1936 | Groetchen Tool & Mfg. Co. Chicago, IL, USA |
