This Model 1859 Sharps rifle is in both the desirable and correct configuration of the special ordered rifles produced for the 1st and 2nd U.S. Sharpshooter Regiments (Berdan's Sharpshooters) in 1862 and falls well within the correct documented serial number range (54374-57574). The Ordnance Department's initial order was for standard Model 1859 rifles, but Colonel Hiram Berdan contacted the factory and requested a dull barrel finish and double set triggers. The factory assumed Berdan had permission for the changes and began producing rifles for the unit to his specifications, but once the Ordnance Department got word, they insisted that they would not pay for additional rifles in the upgraded "sniper" double set trigger configuration. However, given that the specifications Berdan requested did not actually cost more due to the use of a socket bayonet rather than a sword bayonet, Sharps may have just continued making the rifles as Berdan requested. Many of the rifles were used by the Sharpshooters, but others were diverted and used by other units such as the Bucktails (13th Pennsylvania). This rifle has a nickel-silver blade front sight, Lawrence patent notch and ladder rear sight, adjustable double set triggers, long military style forearm, sling swivels on the middle barrel band and buttstock, an iron patch box, and is correctly not fit with a lever latch.