Original oil and gas trade vintage ad for BRIDGEPORT MACHINE COMPANY. Main office and factory was located in Wichita, KS. Get Hep to Bridgeport's Hychrome Products. The blank-blank fool demolished 3 bits on that formation because he thought we didn't want to buy a Hychrome Bit. Did he get the can? And Don't Come back! You can also rent a tool from Bridgeport Rental Service. This unique 1930 old oilfield petroleum drilling equipment magazine advertisement would display fabulous matted and framed.