Original oil and gas trade magazine vintage ad for OIL CENTER TOOL COMPANY of Houston, TX. O-C-T Machines mean business. Craftsmen and machine tools team up with our research and design engineers to produce wellhead components that are precision manufactured. And these components are in turn precision installed by highly qualified forces in the field. This unique 1959 old oilfield petroleum well industry magazine advertisement would display beautifully matted and framed. Nice graphics.