Original oil and gas trade magazine vintage ad for TECHNICAL OIL TOOL CORPORATION of Los Angeles, CA. Foolproof Double Recorder. TOTCO mechanical instrument that gives accurate readings every ti..
Original oil and gas vintage magazine ad for TECHNICAL OIL TOOL CORPORATION in Los Angeles, CA. TOTCO Verified double recorder. You can be sure and double sure of straight hole all the way. Th..
Original vintage oil and gas petroleum magazine ad for the TECHNICAL OIL TOOL CORPORATION, of 1057 N. La Brae Avenue, Los Angeles, CA. TOTCO Double Recorder. Dependability. O..