Original oil and gas trade magazine vintage ad for HALLIBURTON OIL WELL CEMENTING COMPANY of Duncan, OK. Guard Electrode Logging, controlled current disk logs thin zones too. The striking feature of this new system is a powerful controlled current that is forced to flow perpendicular to the bore hole in a flat, disk-like manner. This unique 1953 old one page oilfield petroleum equipment industry magazine advertisement would display beautifully matted and framed. Nice graphics.