Original oil and gas trade magazine vintage ad for GENERAL GEOPHYSICAL COMPANY, was located in the Gulf Building, Houston, TX. Instruments versus Elements. In off-shore, swamp, marsh or mountains, wherever you use the services of General crews, the percentage for successful exploration is in your favor. Pictured is a marsh-type seismometer, oscillograph, and amplifier. This unique 1953 old oilfield petroleum industry equipment magazine advertisement would display beautifully matted and framed. Nice graphics.