Junior Silent Vender [Indian Head Q.T.] © 1933 Mills Novelty Co.
Junior Silent Vender was sold $57 at it's time of release.
Also released as "Junior Silent Bell [Indian Head Q.T.]".
Collector's Treasury of Antique Slot Machines from Contemporary Advertising - Peter Bach - Page 90
For Amusement Only - Thomas Gustwiller - Taylor Printing - 1995 - Page 33
The Coin Machine Journal - January 1940 issue