I have in possession a vintage S&W Regulation Police Pre-Model 31, 5 screw, hand ejector, 32 Long CTG. It needs some gunsmith work as hammer locks up after first cycle which in my understanding was a common issue for this model. Has about 25% blueing loss on cylinder. Family heirloom and never fired it myself.......I know nothing about the history of this particular pistol. Does anyone know what I could expect the "as-is" value to be on this revolver? I see a couple on GB priced in good condition between $800-$900 but no bids on them.