Original oil and gas trade vintage ad for BLACK, SIVALLS AND BRYSON. INC. Main office and factory was located in Oklahoma City, OK. Weatherproof Dehydration for small volume wellstreams with the B S and B Eskimo Glycol Dehydrator unit. The one shown operates year round at Big Piney, Wyoming. It consists of a horizontal absorber-separator vessel and a regenerator vessel mounted and housed on the same skid. All controls, piping and pump are inside the galvanized house where they are protected from the weather. This unique 1962 old two-sided oilfield petroleum industry equipment magazine advertisement would display beautifully matted and framed.