Original oil and gas trade magazine vintage ad for THE GUIBERSON CORPORATION of Dallas, TX. This Adjustable Guide Head has Long Been Needed in a Tubing Spider. Unique 1934 old oilfield petroleum drilling equipment industry magazine advertisement. On the reverse side is an ad for OKLAHOMA GAS AND ELECTRIC COMPANY of Oklahoma City, OK. Would You Like to Pump Your Wells for 2 or 3 cents Per Barrel? Approximate size 10 x 13 inches.