I had asked in a previous post but never got an answer about a Detective Special I acquired. The serial number is 3605XX. I know that it is a 1928 model of the D.S.and I saw today in the latest Guns & Ammo that someone inquired on # 5281XX and was told that it was shipped in 1949. I figure mine must be around 1938 or so? Does anyone have the D.O.B. for my gun? Also, what is a good reference book for the Colt revolvers? Thank you in advance.