Original oil and gas trade magazine vintage ad for DUFF-NORTON MANUFACTURING COMPANY. Main office and factory was located at 112 N. Washington, Odessa, TX. Oil Field Jacks No. 516, No. 1022, The Roustabout No. 1523, and No. 2028. Jacks. On the reverse side is Anaconda Wire & Cable Company, AnacondA Aerial Cable. Shown is the self-supporting Aerial Cable at Shell Oil's refinery at Norco, Louisiana. Unique 1955 old oilfield petroleum drilling industry equipment magazine advertisement,