This model was introduced in 1863 and was based on Joseph Rider's patented double action design. The top barrel flat has the three-line New Model marking. London proofs are stamped on the left side of the barrel and frame as well as between the cylinder chambers at the rear. Both grip panels and barrel are numbered to the gun. .36 caliber percussion models are much less frequently encountered than their the conversion counterparts.

Fine, retaining 75% period refinished blue finish, faded to brown on the balance and smooth gray patina on the grip straps. The re-oiled grips are very fine with some very shallow dings on the bottom. Mechanically functions fine, although slightly out of time.