Original 1990 Oil and Gas trade vintage catalog for GYRODATA, INC.  Main office and plant was located at 1682 West  Sam Houston Parkway North, Houston, TX. 

Manufacturers of Oilfield Equipment. 

'Gyrodata Wellbore Surveyor'.  An advanced directional surveying system employing state-of-the-art aerospace guidance sensors and solid-state electronics.

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

Unbound from a large rare 1990-1991 Composite Catalog, this unique old one-page technical brochure would display beautifully matted and framed. Nice graphics. A fabulous addition to your retro oilfield petroleum industry library.