Pretty sure I bought this one from a Villa-Mart (later Valu-Mart) Tube testing kiosk in Beaverton, Oregon in about 1970 (price still attached), never used. Images do an adequate job of representing the item.
Pretty sure I bought this one from a Villa-Mart (later Valu-Mart) Tube testing kiosk in Beaverton, Oregon in about 1970 (price still attached), never used. Images do an adequate job of representing the item.