http://cgi.ebay.com/ws/eBayISAPI.dll...161185176&rd=1
Here you go. It's not just a Kriegsmarine, but a Krieghoff Kriegsmarine barrel with a "very rare" thin barrel flange. Or as we call them in gun repair... a relief-cut. This barrel is now junk. They are trying to pass it off as a rare variation.
For those of you who are not knowledgable about this. If you are trying to remove a stubborn barrel. And you don't want to save it. You use a lathe or hacksaw and cut a relief cut around the full circumference of the barrel flange to relieve the tension on the barrel threads. So that you can unscrew it. This is a well done example. Which is now a damn fine paperweight.
Ron