Cal 44-40. Action is nice and crisp. Original sights including folding ladder carbine rear sight. Bright shiny bore with excellent riflings. Original wood has a few usage mars but no signs of abuse. Most original varnish present with a carbine style buttplate. Overall metal is excellent with 95% original blue. Toning slightly on the bottom of the receiver. Good case colors on the hammer and lever. Hard to improve upon this good looking 73 SRC.