.54 caliber, 24.25" barrel. Top flat of barrel marked with RP/P The lock is marked N.P. Ames/Springfield/Mass behind hammer and WM. Jenks at tail. Walnut stock with brass barrel bands, trigger guard and buttplate. Sling ring in trigger guard tang. Breech with oval loading aperture and rifled bore.
Good overall. Lock with traces of case coloring, metal with brownish patina and scattered surface oxidation, wood with wear, bumps & dings. 1 1/2" crack at upper rear of lock plate. Mechanically functional.