Framus banjos and other instruments were made in Germany (FRAnconia MUSic).Their guitars were generally too heavily built and basically not much good, but the basses were popular...Bill Wyman had one.
Framus banjos were very popular here in Ireland in the 60's, partly because they were about the only half-decent ones available. I bought one (new) in '68 or so for £27, which at the time was not a fortune but not to be sneezed at either. Generally prices at that time ranged from about £20 to about £40. For comparison there was a Martin OOO-something in the same shop for £180 (new)
Like the guitars they were heavily built and good workhorse instruments. The tone could be rather aggresive, but ok if played with restraint. I still have mine, now with a Waverly imitation skin head which calms it down a bit,and I wouldn't part with it.
As a very broad generalisation they sell here for maybe €600 to €800.