Back in my pawn shop days in Killeen Texas a two digit serial number showed up in one of the stores. It had quite a bit of rust but still functioned perfectly. The gun snob in me, which I have tried my best to destroy, decided to pass on it instead of buying it because of that. I don't remember exactly what it sold for, but it was somewhere in the $1500-$2500 range. And it was gone in a day.
Always wondered how it got there. That town had lots of WWII, Korea, and especially Vietnam bringbacks thanks to Ft Hood. But that gun was out of service LONG before Hood was anything more than a cow pasture. My guess is it somehow hung around the inventories and was sold as surplus locally, probably in the late 40s early 50s.
I regret passing on lots of guns, but that one is near the top of the list.