I have what I believe is a .32 Colt Police Positive Special (first issue) on the barrel it has COLT'S PTF A MFG CO. Hartford CT. USA pat'd August 5,1884- June 5, 1900- July 4, 1905 the serial number is 160300 or 180300 and there is a W underneath the top serial number. I've looked on proofhouse but I couldn't find anything so I'm stuck. My great great grandfather was the sheriff of a little town in Oklahoma, the revolver has a lot of sentimental value. It was handed down to me from my grandfather. Now that I have it I'm trying to get as much history & information on it as possible and knowing the year would really help me bc I want to know if my great great grandfather got the gun when he became sheriff, if he purchased it himself or if it was given to him by the sheriff before him. I obviously can't ask him so I don't know if there is even a way to find that info out or not, I'm mostly worried about the age of it. I would also like to know the value of it. I don't plan on selling it bc I figure the longer I hold on to it the more valuable it will be, I plan on handing it down to my boy when he's old enough. Unless someone offers me a number I can't turn down. I hope there's some body out there that has advice, some kind of information or can just help me in any way I'd appreciate it.