[adelphian.y.a.]

i have read over the posts and found one with the same starting serial number as the one i have. Which is 428xxx. it stated it was manufactured in the 1920's.
i figured it dated to that year because mine is etched with the owners name on it. the handwriting dates to the early 20th century.
1. does the gun being etched with the owners name affect the value?
2. the owner of the house wants to give me the gun. can i register the gun or would it be trouble for me?
3. she thought it was her grandfathers but the name on the gun aint her grandfathers. and being the gun laws weren't what they are today she has no idea of where it came from.