My ffl friend has come into possesion of an old Colt Police Positive, and is trying to find the correct value for it. It is a .32 Colt, 4" bbl., blue finish in all original condition. Serial number 371735. It has the original box, but that is in somewhat rough condition. He says the finish is all intact with minor nicks to it, but no rust. He is going to try to send me pictures when he gets it all cleaned up. Anyone here have an idea what it is worth?