Manufactured in 1976-77. Converted by gunsmith Charles Kelsey, the Devel "Full-House" conversion features recessed front sight with red insert, adjustable rear sight, fluted slide, shortened grip, shortened frame, 3 1/2 inch barrel with polished feed ramp and chamber, Devel barrel bushing installed to improve accuracy, Wolff springs throughout, relieved trigger guard area with finger hook, bobbed hammer, flat plastic grips with cartridge counting windows (Devel logos absent, includes St. Christopher medals modified to be able to be attached in their place), and finger rest magazine floor plate. This Model 59 Devel conversion is numbered "144" to the right of the original serial number. Includes original S&W blue box, a letter from Devel pertaining to the modification of pistols, a Devel order sheet for the pistol, leather holster, and an extra magazine.