The Mallory 1313L Rotary Switch Volume Control is a non-shorting component manufactured by P.R. Mallory & Co. for vintage electronic repair and radio restoration. Designed with 1 section and 3 circuits offering 2 to 3 positions (one circuit per section), 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 1/2 inch spacing between two sections for reliable circuit switching performance.