Nominally .65 caliber with muzzle flaring to 1.35". 13" pinned two-stage octagon to round blunderbuss style barrel. SN: NSN. Bright finish, brass furniture, hardwood stock. Single shot muzzleloading flintlock blunderbuss for the Middle Eastern market shortened to "Knee Pistol" configuration. Flint lock with rounded, fenced and bridled iron pan and swan neck cock decorated with Middle Eastern and Islamic themes. Barrel with false London proofs and similar thematic decorations. Butt appears to have been shortened the "knee pistol" configuration with a somewhat ill-fitting brass buttplate.