Thanks for that info and that's an excellent find! I'll be keeping an eye on German ebay from now on and brushing up on my German a little bit...

Here are a few more pics of it overall and the muzzle end. The bore is still a little bit dusty from being upright on the shelf in the gun shop; I haven't run any patches through it yet. I'll be back with more info once I get the chamber cast done and slug the bore.

Thanks again guys!