Posted 8 years ago
The model 43 shown here is a 7 lever/wheel model. It weighs 2 lbs 8 oz and measures 4"W x 3.5"L x 7"H. The exact dates of manufacture are not known but I do know that in 1939 there were a number of different variants being produced and it was advertised that they could be customized to your needs. While the machine has “patents pending” stamped on the front no patents seemed to have ever been granted.
A more in-depth write-up about the Model 43 can be found at americanstationer.wordpress.com