This listing is for a vintage paper advertisement. This is a 1957 ad for a Otarion Listener Hearing Aid! The size of the ad is approximately 5x6.5inches. The caption for this ad is 'Read why Dr. Lee de Forest, Inventor of the Vacuum Tube, Father of Modern Radio and Television prefers this new Hearing Miracle' The ad is in great condition. This vintage ad would look great framed and displayed! Add it to your collection today!