Wind Up Toy Monkey Drummer

I bought this as part of my monkey collection when I was a child. I can't see any manufacturer markings on it anywhere, and I don't know how old it is, but based on some other research I've done, I'm guessing it's probably from about 1950s Germany? It is fixed-key wind up on his back, arms are originals which beat his drum and his head rocks back and forth too! He works, albeit a bit stiff!