Thanks for your reply, Michael!
Actually, my lack of expertise on katzbalgers and other 16th century swords has already cost me a lot of money. About eight years ago I purchased what was purportedly a genuine katzbalger from a dealer (now deceased) who shall go nameless. I found out through Bonhams (I think it was Bonhams and Butterfields then) it was a fake as were the bastard sword, war hammer, and two handed sword I also bought from this dealer (some of the items were not strictly fakes apparently; rather, they were Victorian copies, though the dealer described them as genuine originals). I ended up disposing of all of them through Bonhams in their San Francisco sale of June 29, 2005. If you have a copy of this catalog, the four items I mentioned are on page 79: 2413, 2414, 2415, and 2416.
Eric