Original oil and gas trade magazine vintage ad for HALLIBURTON COMPANY of Duncan, OK. Cement-O-Matic Automatically Controlled Cement Slurries. Designed to maintain a constant preselected slurry weight, measure the weight of cement slurry and indicate flow rate, instantly indicate the total flow at any point during the cementing job. The new instruments which make this possible are the Densometer, Densitroller, Flow Meter and Flow Analyzer. This unique 1962 old oilfield petroleum drilling industry magazine advertisement would display beautifully matted and framed. Two page gatefold advertisement.