This is one of less than 300 breech loading percussion long guns manufactured by W.W. Marston of New York City, circa mid-1850s. The rifle is equipped with blade and notch sights. The frame and hammer have a factory scroll engraving and the left side of the frame is stamped with the one line 1850 patent date. The action has double set triggers. The ramrod pipes are numbered to the gun. Mounted with a checkered straight grip stock with cheekpiece and correctly without provisions for a forearm.