Original oil and gas trade magazine vintage ad for BAKER OIL TOOLS, INC. of Los Angeles, CA. Savings multiply with Baker Mercury retainer production packers. Use it as a squeeze cementing tool, frac and testing tool, bridge plug, single or multiple completions packer. Series Model D and N, designed for today's and tomorrow's deeper sells, higher temperatures, higher pressures. This unique 1962 multi-page oilfield petroleum drilling industry equipment magazine advertisement would display beautifully matted and framed. 4 page gatefold advertisement.