.54 caliber. 33.25" pinned octagonal barrel. SN: NSN. Browned finish, brass furniture, full-length hardwood stock with raised cheek rest. Single screw percussion lock marked "LEMAN/LANCASTER". Heavy barrel measures 1" across the flats at the muzzle, has a drum bolster and is marked "H.E. LEMAN LANCASTER PA" and "WARRANTED" on the top. Lancaster-style plain four-piece brass patchbox with release in toe plate, plain finger-extension brass triggerguard, plain brass buttplate, nose cap and thimble and entry pipe with a wood ramrod. Fixed notch rear sight, modified dovetailed front sight blade.