Original oil and gas trade magazine vintage ad for HY-TEST 303 CORPORATION of Rutherford, NJ. Greatest Customer Getter in fuel oil history. Mr John Valk, Jr., President. Hy-Test sold by Mr Michael C. Winetsky, Consumers Coal and Oil Company in Rockville Centre, NY., Mrs Catherine Woodbury in Quincy, Ma., Mr Sink Walser, Mid-State Oil Company in Salisbury, NC, Mr George Kaneb of Devitt Fuel, and Mr H. O. Anderson of Martinsburg, WV. This unique 1957 old petroleum products industry magazine advertisement would display beautifully matted and framed. Nice graphics. Two page gatefold advertisement. 1 inch tear at the top of the page.