This is a Third Model is one of around 550 manufactured by Parry W. Porter of Memphis, Tennessee, and New York City normally found in the 680-1225 serial number range. Most of those would have been rifles while this is a scarce example with a larger caliber smoothbore barrel for use as a musket or shotgun. It measures around 15 bore and has offset blade and notch sights. Instead of a serial number in the Third Model range, it is numbered "6" on the bottom of the barrel and "5" inside the lock and frame suggesting the larger caliber smoothbores may have been in their own range, perhaps as prototypes or trials guns. There are no other markings. The lever on this version does not appear to have been designed to automatically cock the hammer. Provenance: The Mark Aziz Collection; Property of a Gentleman