Original oil and gas trade magazine vintage ad for ARMCO STEEL CORPORATION of Middletown, OH. Spang extreme line casing joint is streamlined internally and externally with a minimum outside diameter. It has exceptional strength. Casing in the field picture shown is being run in a deep well near Citronelle, Alabama. This unique 1962 old oilfield petroleum dirill pipe equipment magazine advertisement would display beautifully matted and framed. Two-page gatefold technical advertisement.