Original vintage ad for WESTMINISTER RECORDING COMPANY.  Testing stereo equipment, a comprehensive tool for professional and non professional.  Frequency response, separation, dynamic range, channel phrasing, turntable wow and flutter, stylus tracking are all thoroughly checked for precise correction.  Found at your record dealers now.
Main office was located at 74 Alabama Avenue, Island Park, NY.
This unique old one page 1961 high fidelity trade magazine advertisement would display beautifully matted and framed.  It would make a nice accompaniment to your vintage stereo.