I have an Italian made 1851 navy colt revolver with a cartridge kit caliber 38 Smith & Wesson (not 38 Special) that doesn't have any maker marks on it. I've overlooked it and taken it apart so many times now, but I've yet to find any. It has all the Italian proof marks and has a serial number. I know from the marks it was made in 1977. The reason why I need to identify it is so that I can get proper matching parts for it. The only thing I was ever able to find it matching was an online auction piece marked as "Pietta 1851 Navy Cartridge Conversion .38 Smith & Wesson". This does look similar to what I have and the cylinder matches mine, but I'm not sure if mine is really a Pietta because when I look up parts they don't seem to match. Any help would be appreciated. I will leave a link to the auction piece for pictures because other than mine having a brass frame this one is similar enough and the cylinder is the important part because that is one of the parts I would like to replace with a matching one or a new one in 38 Long.
Pietta 1851 Navy Cartridge Conversion .38 Smith & Wesson
http://www.gunauction.com/buy/11063556
Pietta 1851 Navy Cartridge Conversion .38 Smith & Wesson
http://www.gunauction.com/buy/11063556