These rifles were manufactured in the 1850s. Many have noted how these rifles seem to fly directly in the face of firearms safety rules given there are loaded chambers pointing at the shooter, but they represent a very clever solution to creating an multi-shot rifle without infringing on other patented designs. The primer magazine on these early rifles feeds caps into alignment with the hammer. They are then struck by the hammer against small holes in the turret. This very low serial number example falls within the 1-300 serial number range typically associated with the First Model version but has features of both the First Model and the Second Model variants explained in "Flayderman's Guide" as well as details not found on either. It is in .38-.40 caliber like the earliest "canister" mounted Porters rather than .44. It also has a different lock mechanism latch. This rifle along with serial number 25 sold by our firm several years ago are in similar configurations and show that these early rifles have differences from the usual model classifications and are particularly scarce variants. The barrel is marked "ADDRESS P.W. PORTER/NEW=YORK" and "P.W. PORTER'S/PATENT 1851" in two-line/two-blocks on the upper left flat and has offset front and rear sights since the turret is in the normal line of sight and the serial number "22" on the bottom. The "U" shaped iron turret cover is absent, but these are only rarely found with the rifles. The percussion cap magazine is round and pivots downward and has a circular cover that also rotates downward for refilling. The cover is marked with the serial number "22" and the rotating plate has "23" and "22." The rifle has a straight hammer like the first and second models. This early example has a larger latch for the action. Matching "22" serial numbers are marked on various internal components. The rifle has a smooth, straight grip stock with a crescent iron buttplate.