| Trade Stimulator |  Liberty Sports Parade Discreet Ball Gum Vender | 1940 | Groetchen Tool & Mfg. Co. Chicago, IL, USA |
| Trade Stimulator | Mercury | 1939 | Groetchen Tool & Mfg. Co. Chicago, IL, USA |
| Trade Stimulator | Mercury Discreet | 1939 | Groetchen Tool & Mfg. Co. Chicago, IL, USA |
| Trade Stimulator | Mercury Punchboard | 1939 | Groetchen Tool & Mfg. Co. Chicago, IL, USA |
| Trade Stimulator | Motorized Mercury | 1939 | Groetchen Tool & Mfg. Co. Chicago, IL, USA |
| Trade Stimulator | Motorized Sparks | 1939 | 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 | New Pike's Peak | 1941 | 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 | Pike's Peak | 1941 | Groetchen Tool & Mfg. Co. Chicago, IL, USA |
| Trade Stimulator | Pok-O-Reel | 1941 | Groetchen Tool & Mfg. Co. Chicago, IL, USA |
| Trade Stimulator | Pok-O-Reel | 1932 | Groetchen Tool & Mfg. Co. Chicago, IL, USA |
| Trade Stimulator | Pok-O-Reel | 1936 | Groetchen Tool & Mfg. Co. Chicago, IL, USA |
| Trade Stimulator | Pok-O-Reel | 1949 | 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 | Pok-O-Reel Side Gum Vender | 1933 | Groetchen Tool & Mfg. Co. Chicago, IL, USA |
| Trade Stimulator | Punchette | 1936 | Groetchen Tool & Mfg. Co. Chicago, IL, USA |
| Trade Stimulator | Roto-Matic Vender | 1934 | Groetchen Tool & Mfg. Co. Chicago, IL, USA |
| Trade Stimulator | Royal Flush | 1937 | 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 | Skill Shot | 1941 | Groetchen Tool & Mfg. Co. Chicago, IL, USA |
| Trade Stimulator | Skill-Test Steeple Jump | 1948 | Groetchen Tool & Mfg. Co. Chicago, IL, USA |
| Trade Stimulator | Smoke House | 1936 | 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 | Sparks Champion | 1940 | Groetchen Tool & Mfg. Co. Chicago, IL, USA |
| Trade Stimulator | Sparks Champion Bell | 1941 | Groetchen Tool & Mfg. Co. Chicago, IL, USA |
| Trade Stimulator | Sparks Champion Bell Discreet | 1941 | Groetchen Tool & Mfg. Co. Chicago, IL, USA |
| Trade Stimulator | Sparks Champion Discreet | 1940 | Groetchen Tool & Mfg. Co. Chicago, IL, USA |
| Trade Stimulator | Sparks Champion Sports | 1940 | Groetchen Tool & Mfg. Co. Chicago, IL, USA |
| Trade Stimulator | Sparks Champion Sports Discreet | 1940 | Groetchen Tool & Mfg. Co. Chicago, IL, USA |
| Trade Stimulator | Sparks Delux | 1938 | Groetchen Tool & Mfg. Co. Chicago, IL, USA |
