This is an early Third Model version of Parry W. Porter's distinctive turret rifles (approximately 680-1225 serial number range) and includes the U-shaped turret cover, a piece missing from most surviving Porter rifles. It has off-set blade and notch sights, "ADDRESS/P.W. PORTER/NEW-YORK" and "P.W. PORTER'S/PATENT/1851." on the upper left barrel flat, "O" on the outside of the hinged side plate below the hammer, matching serial numbers on various components, and smooth stock with crescent buttplate.

Very good with mostly smooth brown patina throughout, mild oxidation, barely visible hairline crack across the top of the wrist of the stock, reworked/repaired lever, mild scrapes and dings, and general mild wear. Mechanically fine.