Does anyone have any experience with these? What would the value of a NIB one be? A friend has a shop with 2 of these that came in on consignment and he hasn't priced them yet. I have a Walther PPK/L IN .22 that I never shoot but I just think they are neat looking guns andthey are cons. serial #'s, not that that matters much on guns like these I guess. These are Erma, Excam guns.