Originally manufactured in 1864, this Parker, Snow & Company Rifle was one of approximately 2,000 upgraded with the Miller breech loading system by Meriden Manufacturing circa 1865-1867. Blade front and 3-leaf rear sights, with the lock plate marked "1864" behind the hammer and "eagle/U.S." and "PARKERS' SNOW&CO./MERIDEN.CONN." ahead of the hammer and the rimfire breechblock marked "W.H. & G.W. MILLER/PATENT MAY 23, 1865/MERIDEN MAN'F'G. CO./MERIDEN, CONN." on top and "618" on the bottom. Smooth stock, with three "U" marked barrel bands, "GR" and "6" cut into the left side of the buttstock, and a smooth "U S" marked buttplate.