Percussion .72 caliber smooth bore pistol by Theo Richards, patent 148. Barrel measures 6 inches. Gun is approximately 12 inches overall. Checkered wood grip and engraved lock plate, lock, trigger guard, and tang. Marked " Theo S. Richards patent 148" both on top of barrel and front of lock plate. Patina on barrel and metal parts and swivel button head ramrod. Gun is in overall very good condition with all parts appearing functional and sound and bore clean from corrosion.