[AGE]

I guess I am the first (second) to answer. IMHO it's your gun do what you want to it. I have many (perhaps most of them) altered guns. My oldest is a Thor reworked 1915 DWM. Great gun in new condition.

I don't intend to sell these guns, but so what if I did. I wouldn't attempt to deceive anyone, and any 100% 90 year old gun should be suspect.