Manufactured in the mid to late 1870s with the wedge near the muzzle, open top frame, "scooped" cylinder flutes, and the bird's head butt. The serial number is on the right side of the butt ahead of the lanyard hole. The barrel has a rounded blade front sight and the two-line Hopkins & Allen address and patent marking on the left. The frame has "MERWIN, HULBERT & CO. N.Y./POCKET ARMY" on the left and "CALIBRE/WINCHESTER 1873" on the right. Matching assembly numbers are on the cylinder and barrel. Carved steerhead on the right grip panel.