Original oil and gas trade magazine vintage ad for AIR REDUCTION SALES COMPANY. Main office was located in New York City, NY. AIRCO Aids to Sound, Economical Pipe Line Welding. Aircoweld Process, Pipe Cutting and Beveling machine, Portable Weld Tester, Welding Apparatus and Supplies. Unique 1934 old oilfield petroleum pipe and pipeline industry equipment magazine advertisement. Approximate size 10 x 13 inches.