What you have is one of the Prussian copies of the Model 1861 (Flayderman 9A-334). The city of Sughl (Suhl) in the Thuringian province of Prussia, and its satellite cities, Zella, Mehis and St. Blasien, provided the German states with a private arms making complex that rivaled those of Liege and Birmingham. Several contractors for the North entered into contracts with the Suhl makers to provide rifle muskets for the Union, and there were 481 of these muskets imported by William Hahn of New York, including the initial delivery of 179 "German muskets, Springfield pattern, caliber .58 inch," in March 1862, and a further lot of 302 delivered on 15 July 1862.

[Frederick P. Todd (1974) American Military Equipage, 1851-1872, Vol 1, pp138-9; William Edwards (1962) Civil War Arms, pp256-7]