Original oil and gas trade magazine vintage ad for KAW BOILER WORKS COMPANY of Kansas City, MO. The Time Is Coming Soon. Oil Refinery Equipment and Steel Storage Tanks. This unique 1921 old petroleum storage tank industry magazine advertisement would display marvelously when matted and framed. (The scan shows a slight pink tint that is not in the actual ad.) On the reverse side is an ad for CHAPMAN VALVE MANUFACTURING COMPANY of Indian Orchard, MA. Chapman Steel Gate Valves for Superheated Steam and High Pressure Distillation. Unique old petroleum valve industry magazine advertisement. Minor crease down center of ad. Approximate size 9 x 12 inches.