Original oil and gas trade magazine vintage ad for THE CARBONDALE MACHINE COMPANY of Carbondale, PA. Refrigeration for Refineries. Coils for Dephlegmator Towers. Unique 1924 old petroleum refining process industry magazine advertisement. Due to scanner limits, image appears clipped on bottom. Actual ad page is will display in full. On the reverse side is an ad for THE INTERNATIONAL DERRICK & EQUIPMENT COMPANY of Columbus, OH. Steel Derricks in the Corsicana-Powell oil field. Approximate page size 9 x 12 inches.