Original vintage magazine ad for TRETOLITE COMPANY in St. Louis, MO. Division of Petrolite. Chemist William Barnickel revolutionized the handling of cut oil while he was at Kiefer, Oklahoma, near the then booming Glenn Pool. At that time, when produced oil showed any substantial percentage of emulsified water, it was deemed unfit for refining and disposed of, sometimes in to nearest stream. This 1959 unique old two page gatefold petroleum trade advertisement would display beautifully matted and framed.
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