GENERAL RADIO Potentiometer 371-A, 1000 Ohm., 15 Watts, New Old Stock In Original box with mounting hole diagram, mounting nuts/bolts, and arrow indicator knob. Main body is 3” in diameter and approximately 2 3/8” deep. Appears to have never been used as storage box indicated unused. Good solid condition showing no usage wear marks on edge. Made in USA. Please see pictures for complete detail of overall quality, box specifications and item marks.