The latest models produced by Colonel Colt before his death were the Model 1860 ARMY cl. 44 and the Model 1861 NAVY cl. 36 made with the new steel-silver alloys that were discovered in the Colonel's factory.
We have introduced several models in our range:
PIETTA SHERIFF'S Model, PIETTA 1860 ARMY BRASS FRAME, a cheaper version of the original with steel castle, the 1861 with brass handle, PIETTA 1862 NEW YORK METROPOLITAN POLICE cl. 36, the weapon used by the police of the city from which it takes its name, with band and underguard and PIETTA 1862 POLICE "PONY EXPRESS" cl. 36/44 with brass castle.