While it resembles a Leman rifle, I do not think it is a Leman. The stock architecture is rather generic which was typical for a ca. 1840s Lancaster rifle, including Leman's work, but a couple details are not correct for a Leman rifle. First, the comb is simply too low for a Leman [yes, there is probably an exception out there], and I have never seen the neat little butt plate return detail on a Leman rifle. I'd think it's an 1840s Lancaster rifle, but not by Leman. Unfortunately, the barrel being shortened about 7" probably removed any trace of the maker's name. Shelby Gallien