With better picture that can easily be identified and valued. It is a German bass from early 20th Century, a few condition issues to consider though, has it been over varnished? They are normally varnished with a spirit varnish that never peels like this. Second question if so, why? Is the varnish hiding cracks? Check the neck in particular, it could be broken at the heel or near the head, is the neck beech or maple?
Those basses usually have an Eb-stop, not very popular these days but common.
I'd love to see pictures of the rest!
Best wishes,
Kai
PS: Geoff, you have learned a lot about basses.... I'm really pleased to read your insightful comments!