I have a c1934 Groetchen table top "21 Twenty one" trade stimulator with no back. Does anyone know if any other Groetchen machines backs will interchange with the one I have?
The patent number is 1978395. I know the back was metal with a key lock. The sides of the machine are wood and the front is cast iron. The opening measures 12 1/4" across and 10 3/8" high (no counting the slot it fits into).
Thank you.
The patent number is 1978395. I know the back was metal with a key lock. The sides of the machine are wood and the front is cast iron. The opening measures 12 1/4" across and 10 3/8" high (no counting the slot it fits into).
Thank you.