Public domain
Amarillo, Texas. Geologist making a log of a well from examination of cutting taken from different depths during the drilling of the well by the Phillips Petroleum Company
From the collection of Library of Congress. Free to download, adapt and use — no permission needed.
Credit lineAmarillo, Texas. Geologist making a log of a well from examination of cutting taken from different depths during the drilling of the well by the Phillips Petroleum Company. 1942-01-01. Vachon, John. Farm Security Administration/Office of War Information Collection, Library of Congress. Public domain.