This is a vintage Sears Craftsman Dual Range arc welder, model number 113.201372. The unit is a transformer-style stick welder marketed by Sears, Roebuck and Co. It features infinite heat selection with a secondary output rated up to 230 amps. Primary electrical specifications include 230 volts AC, 50 amps, 60 Hz, single phase. Secondary specifications are rated at a maximum of 230 amps at 25 arc volts, with a maximum open circuit secondary of 80 volts and a 20 percent minimum duty cycle. The welder is equipped with a top-mounted adjustment dial for current selection across two ranges: a 40-230 amp range and a 30-140 amp range. The machine includes an attached primary power cord, a ground clamp, and an electrode holder. Identification plates and safety labeling include the model number 113.201372, serial/code date 1043.P0086, and an American National Standards Institute (ANSI) precautionary label. The housing is constructed of metal with integrated cooling vents and a front-mounted power toggle switch.