Hey Fellas,
Well, actually this is the Smiths model iron frame spur trigger in .38 short rimfire. I've done a lot of research on these spurs for my book. Otis Smith was working with Ira Johnson(not to be mistaken for Iver Johnson) in the first Plant in Ct. The "Rockfall" plant burnt down in 1879. So these early spurs are kinda scarce. Less than 4000 made in both .38 and .41 rimfire combined (On the same frame). Earliest low serial numbers are manufactured with brass frames. Your's is a later iron frame so the serial number is partially obliterated I guess. It's unfortunate that some of us assign little value to these. The truth is that the parts alone are worth more than $150. Even with the side plate missing. So, I wouldn't give it away.