Original 1947 Oil and Gas trade vintage catalog for the M O JOHNSTON OIL FIELD SERVICE CORPORATION.  Main office and plant were located at 3117 San Fernando Road, Los Angeles, CA., and at 6702 Navigation Blvd, Houston, TX.

Manufacturers of Oilfield Equipment. 'Formation and Casing Testing'.

Products include the Johnston Formation Tester, Trip Valve, Retaining Valve, 'Type D' Non-Locking Equalizing Valve, 'Type E' Single Locking Equalizing Valve, Rat Hole Packer, 'Type F' Double Locking Equalizing Valve, Adjustable Choke (Flow Bean), Combination Packers, Casing Packers, Open Hole Packers, Dual Packers, Flow Heads, Safety Joints, Depth Pressure Recorders, Johnston Portable Tool Joint Refacer and the Johnston Vibro-Jar, all are fully featured.

Has product images, explicit illustrations, description, application and specifications to provide product details.

Unbound from a large rare 1946-1947 Composite Catalog, this unique old eighteen-page technical brochure would display beautifully matted and framed. Awesome dated cover graphics. A fabulous addition to your retro oilfield petroleum industry library. Rear cover is torn and missing. (General Catalog 1947).