Original oil and gas trade magazine vintage ad for CABOT CORPORATION of Pampa, TX. Machinery Division. A Franks E. T. model, single drum well servicing unit, was first delivered to Shell Oil Company in March 1939 for rod and tubing work in East Texas. Later it was sold to Harold Black Drilling company of Albany, Texas for regular production drilling. This rig is still in service. This unique 1962 old oilfield petroleum well drilling equipment magazine advertisement would display beautifully matted and framed.