Original old trade magazine vintage ad for WILLIAM POWELL COMPANY in Cincinnati, OH. Valves in the Petroleum Panorama. Powell engineers and metallurgists will gladly make a careful analysi..
Original vintage oil and gas trade magazine ad for THE WILLIAM POWELL COMPANY of Cincinnati, OH. PV Dependability in 2 Letters. Powell Valves. Plug, gate valves. Old 1954 petroleum i..
Original vintage oil and gas magazine ad, THE WM. POWELL COMPANY, of Cincinnati, OH. Powell Corrosion Resistant Valves, The Complete Quality Line. Pictured is a Flanged End Bolted Cap Swin..
Original oil and gas vintage magazine ad for WM POWELL COMPANY. Lubricated Plug Valves advantages over conventional types include simple design, quick shut-off, streamlined flow. Main ..
Original vintage oil and gas trade magazine ad for THE WILLIAM POWELL COMPANY of Cincinnati, OH. Checkmate for Corrosion. Powell Gate Valves. Old 1954 petroleum industry oilfield and..