does anyone know anything about these guns, like how much they are worth, or how to find out when it was made? my dad just gave me one when i went to oregon to see him, it is in almost perfect shape, barely has a drag line, even has the presentation box, and it shoots like a dream. i didn't know a .45 acp could be so accurate, or quiet.

oops sorry model 1955 ser. n35xxxx