Model 21 © 1934 Columbus Vending Co.
Patent list :
DE93,258
1,981,272
1,947,891
1,981,931
1,982,273
1,982,274
Patent History-Peanut Vending Machines By Dick Bueschel.
The Pocket Guide to Coin-op Vending Machines with Price Guide - John Carini - 1997 - Page 49