Even possession of a defaced firearm is a federal violation. Since our topic doesn't include "Firearms" as defined in current regulations, I only offer this for discussion. During my career of 40+ years, I've only seen two cases where this was an issue - both had serial numbers altered to be unreadable. Hint-even if ground off, most stamped numbers can be brought to the surface temporarily. Stamped with a tool is harder to do. Highway Patrol firearms lab tech allowed me to see him do this once.
Faked Civil War Stuff - guns, swords, leather, and most anything you can name was pretty common in the 60's and 70's. Nazi "collectibles" are still common today. Where, at one time, parts were hard to come by, today with a few mouse clicks, they are not. Same with metal-stamping tools, "how to" videos, and foreign companies cranking out about anything they can sell.
What a person does to his own stuff is interesting. Passing it off as something it's not to an unsuspecting buyer is just wrong.
Faked Civil War Stuff - guns, swords, leather, and most anything you can name was pretty common in the 60's and 70's. Nazi "collectibles" are still common today. Where, at one time, parts were hard to come by, today with a few mouse clicks, they are not. Same with metal-stamping tools, "how to" videos, and foreign companies cranking out about anything they can sell.
What a person does to his own stuff is interesting. Passing it off as something it's not to an unsuspecting buyer is just wrong.