Rare smooth straight six-shot barrel group with no flutes or ribs. Caliber is .28. Barrel group is 3" long and is brownish gray in color with some very light roughness present. The left side of the hammer is stamped "PATENTED 1849." Top of the hammer is stamped "W.W. MARSTON." and the right side is stamped "NEW YORK." Overall coloration is brownish gray. Two piece plain bag shaped walnut grips.