This is a rare example of an original U.S. shoulder stock for a Colt Model 1860 Army Percussion Revolver. The serial number (1226) on this stock correctly falls into the Fluted Army serial number range (3 to 8,000) with Colt manufacturing approximately 4,000 Model 1860 Army Revolvers with a fluted cylinder. These stocks were purchased on contract by the federal government during the Civil War. The buttplate and yoke are brass and are left in the bright which is correct for U.S. stocks. (Civilian stocks had silver plated hardware.) The yoke and buttplate are stamped "U.S." along with the serial number "1226". The "U.S." marking on the yoke is double stamped. Note that the serial number falls into the serial number range for first year production Model 1860 revolvers. All stocks were numbered to the revolver. The stock has a correct iron saddle ring mounted on the lower tang. The knurled nut is on top of the yoke and threads directly onto the shaft of the clamp.