Original oil and gas trade magazine vintage ad for REED ROLLER BIT COMPANY in Houston, TX. There Is No Substitute for Good Cores. Good Cores can accurately define the depth and thickness of each formation. Valuable oil well drilling information when used in conjunction with seismograph surveys and other records, affords the quickest possible way to map oil bearing formations. This unique 1953 old one-page petroleum oilfield drilling industry magazine advertisement would display beautifully matted and framed.