Original oil and gas trade magazine vintage ad for W-K-M COMPANY, INC, of Houston, TX. Superhighway Pipelines made with WKM Valves for full volume in oil field operation. Only type valve with have Leverlock control, a positive mechanical means of controlling the gate and gate segment so as to guarantee easy opening and closing under any conditions. This unique 1953 old oilfield petroleum pipe line equipment industry magazine advertisement would display beautifully matted and framed.