SPRINGFIELD MODEL 1847 SAPPERS & MINORS MUSKETOON. Cal. 72. NSN. 25-3/4” rnd bbl. Dated 1855 on lockplate. Date on bbl tang is not visible due to pitting. Only 80 of these were made in 1855. A total of 830 were made in all years. Ames bayonet is also dated 1855,...