Original stereo vintage ad for  AUDIO DYNAMICS CORPORATION. Main office and factory was located at 1677 Cody Avenue, Ridgewood, NY.  Masterpiece and ADC-1 stereo cartridge for the most sensitive ears and feelings.  Your records come alive, revealing brilliant highs and thunderous lows. This unique old one-page 1961 high fidelity turntable equipment magazine advertisement would display beautifully matted and framed.  It would make a nice accompaniment to your vintage stereo.