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Washington, D.C. Testing substitute gasoline and measuring the degree of wear which it produces on an automobile engine cylinder at the U.S. Bureau of Standards
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Credit lineWashington, D.C. Testing substitute gasoline and measuring the degree of wear which it produces on an automobile engine cylinder at the U.S. Bureau of Standards. 1943-01-01. Rosener, Ann. Farm Security Administration/Office of War Information Collection, Library of Congress. Public domain.
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