An acquaintance has a flat top Blackhawk .357 he has offered me for sale. The serial number indicates manufacture in 1959. It has two issues. First; a previous owner decided to engrave his initials in the topstrap. While not poorly done, this obviously ruined its collector value. Second; the bolt does not rise to lock the cylinder, indicating a broken or missing bolt spring. Other than these two issues, the revolver appears very nice. Most of its original blue is intact, with only minor wear at the muzzle. I am not a collector and if I purchase the gun, it will be put to use; but I also do not like investing more money than I can get out of a gun. His asking price seems very attractive. Considering the issues it has, what would be considered a reasonable price for this gun.