NEW SMITH TRANSISTOR 003 MATTE BLACK AUTHENTIC EYEGLASSES FRAMES 52MM W/CASE | eBay
Oakley Eyeglasses 22-215 Transistor Polished Black Half Rim - Etsy Israel
File:Vintage Beltone Tempo Transistor Eyeglass Style Hearing Aid (Hearing Glasses), Sales Model, Made In USA, Circa 1967 (14885604170).jpg - Wikimedia Commons