I don't know a lot about this machine, except that it sews perfect.
I use it constantly as a reference. It cleaned up beautifully. It looked like a parts project when I pulled it out of the trash.
The paint color on these machines seemed to match the automobile paint jobs of the period.
Built like a Brick House, this White-Model 1265, is just a simple, 1950's ZigZag machine.
Even though it is belt drive, It doesn't seem to have a problem with the heavy duty jobs..