Just went to the gunshow and made a purchase. Problem is I know nothing about this gun. Its a colt police positive,stainless steel, chambered in 38 s&w #5585xx. Like I said I know nothing about these revolvers, it appears old maybe 1920s ,if so its in pretty good shape, a little wear at the end of the barrel and some minor scratching(holster wear?). If anyone has any info on these Id appreciate it.Thanks