The Mallory 1325L Rotary Switch Volume Control is a non-shorting component manufactured by P.R. Mallory & Co. for vintage electronic repair and radio restoration. Designed with 2 sections and 4 circuits offering 2 to 5 positions, this switch features a broad base measuring 2-3/8 inches in full diameter and a 2-1/4 inch shaft length. The full outer round design includes 1-1/4 inches spacing between the two sections for reliable circuit switching performance.