Original oil and gas trade magazine vintage ad for GARDNER-DENVER COMPANY, of Quincy, IL. Special Brand of Dependability needed by men who lead a seismograph crew into the hills in search of oil. Their confidence goes up when there's a G-D pump or air compressor on the shot hole rig. This unique 1959 old one page oilfield petroleum drilling equipment magazine advertisement would display beautifully matted and framed.