Public domain
Hydraulic pressure is applied to bags of crushed olives to force out the oil. The first pressing extracts about seventy-five percent of the entire oil content. This is fine virgin olive oil. Lindsay, California
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Credit lineHydraulic pressure is applied to bags of crushed olives to force out the oil. The first pressing extracts about seventy-five percent of the entire oil content. This is fine virgin olive oil. Lindsay, . 1942-01-01. Lee, Russell. Farm Security Administration/Office of War Information Collection, Library of Congress. Public domain.
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