Original oil and gas trade magazine vintage ad for MALONEY-CRAWFORD TANK & MANUFACTURING COMPANY of Tulsa, OK . Help Combat Tank Corrosion. Pictured is a Maloney-Crawford Coned Bottom Tank with an Aluminum Deck which reduces the corrosion effects of hydrogen sulphide gas in solution with crude oil. On the reverse side is an ad for THORNHILL-CRAVER COMPANY of Houston, TX. Save the beans - throw away the holes. Low Cost Unibolt x-bean inserts make positive chokes as Good As New. Unique 1955 old oilfield petroleum industry equipment magazine advertisement. Approximate size 9 x 12 inches.