My coworker has a 1929 Colt SAA s/n 353XXX with a 7 1/2" barrel. I was told it has been re-blued and it doesn't have the original grips. Condition is probably 80-90% other than that. The gun has a 3-digit number (490) stamped into the loading gate that differs from the last 3 of the serial number. I don't know if that's significant or not. It also looks like it was first stamped with "489" and then had "490" stamped over it. I'm curious as to the value because I have a chance to buy it, and I'd like to make the guy a fair offer. It belonged to his father and he wants it to have a good home. I'd really like that home to be mine (if I can afford it).

Thanks in advance for any help you guys can give.