Can anyone supply me with the year of manufacture of a U.S. Revolver .32 break-top with serial number stamped under the left grip panel: 47519. That and "U.S. Revolver Co." on the rib are the only markings. This belly gun was a gift/curse from a now-deceased uncle. Many parts are missing and I'm gathering what's needed to get it shooting. On that note, I'm hoping it's a later gun that'll swallow smokeless loads. But if not, I have plenty of black on hand.