Vintage New Old Stock 1 megohm 1/4 watt potentiometer RCA 101342.  About 1.5 inches by 1.5 inches by 1.5 inches.  1/4 inch half-round shaft.  PC mount.  From stock of a general store.

Shipping can be combined with other parts, equipment, and tubes in my Ebay store.

International buyers are responsible for any import fees or taxes.