aranoid: I was going thru my gun collection today, taking pictures and recording serial numbers of all my guns for insurance purposes. One of my handguns is a family heirloom that belonged to my great grandfather, who was a Railroad Policeman during WW2. In addition to the gun, I have his original holster, badge, ID card, nightstick, and a nasty little weapon that appears to be a round lead ball inside of a woven leather bag on a strap. Anyway, the handgun in question is a Colt Police Positive, model of 1905, chambered in .38 Special. Its in fair shape, I have even fired it a couple of times. I went to look for the serial# and couldnt find it anywhere on the gun. So I looked in the same spot that the # is on my S&W 640...which is inside the crane that holds the cylinder...and in that same spot on my Colt it looks as though someone "filed" the area down. I took a pic, but I dont know how well it shows up. Does anyone know where the serial# is on this gun? And if indeed that # has been filed off...am I breaking the law by being in posession of it? And if it is illegal...could I legally keep it if I removed the firing pin or rendered it inoperable? I dont want to break the law, but I dont want a family heirloom getting thrown into a furnace either. Suggestions?