I recently purchased a used upright 3/4 bass. It has been around for a while, but I don't know how old it is or if it is a good buy. It is a Karl Knilling brand, handmade in Germany. Does anybody know or have ever heard of this brand? The action on it is very good. I am used to playing an Aria upright electric, which is perfect for the type music that I play (Jazz), but even though it gets close to the acoustic sound, it still isn't quite there, and that is why I am excited about this new (old) bass that I have purchased. I would appreciate any feedback. Thanks.