Manufactured by CentraLab for HH Scott to be used in one of their audio amplifiers. CentraLab part # BA1115-008. HH Scott part # 021-1125-060. 1" long x 3/8" diameter shaft, dual connected turnpot base, each pot has 4 connections. They are dual, 1 Meg. linear pots with a tap and were used in the H.H. Scott vacuum tube receivers for the base and treble tone controls. Unused. Price is for a case of 200. Ship weight is 16 pounds. PLEASE NOTE: CASE LOT PRICES ARE PLUS ACTUAL COST TO SHIP