Original 1964 Sinclair Pipe Line Company tank table from Dolivar Station, Oklahoma County, Oklahoma.This large vintage petroleum measurement chart was used to determine the number of 42-gallon barrels of oil contained in a storage tank based on the measured liquid level. The table provides barrel capacities at various tank depths and includes liquid-head corrections based on 37° API oil.The document states “This table effective 7 AM October 1, 1964” and shows a date strapped of 9-2-64. It identifies the owner as Sinclair Pipe Line Co. and Dolivar Station in Oklahoma.Measures approximately 11¾” tall x 22¼” wide when opened.A great original piece of 1960s Sinclair, pipeline, petroleum and oil-field history that actually served as a working tank-gauging reference rather than being an advertising piece.Shows expected wear from actual industrial use and age, including folds, creasing, edge/corner wear and some small tears. Please review photos closely for exact condition.Original Sinclair Pipe Line Company working document — not a reproduction.

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