Original oil and gas trade magazine vintage ad for CALMEC MANUFACTURING COMPANY, LTD. Was located at 5817 Riverside Drive, Los Angeles, CA. Announcing the Consolidation of Los Angeles Pump & Supply Company and California Manufacturing & Engineering Company. The CALMEC Line. Rubber drill pipe protectors, bronze tubing protectors, depthometers, crown blocks, rotary tables, line spoolers, cement heads, Rod spiders, slush pump valves. This unique 1931 old oilfield petroleum drilling tools and equipment magazine advertisement would display beautifully matted and framed.