Intern, the serial number range ended at 29359 in 1864 and 48475 in 1865, so potentially it was used during the civil war. It has the correct two pins in the top strap for an early model S&W No.2. There were unauthorized copies of the Number 2, if it is a S&W product it should have markings : "Smith & Wesson Springfield Mass." on the barrel and Patented April 3, 1855, July 5, 1859 & Dec 18, 1860" in fine print around the cylinder.
A $50 fee paid to S&W will get you a factory letter stating the specifications and address shipped to.
A $50 fee paid to S&W will get you a factory letter stating the specifications and address shipped to.