Public domain
Untitled photo, possibly related to: Freeport Sulphur Company, Grand Ecaille, Louisiana. Conveyor belt which carries sulphur from vats to hopper where it is loaded on the barges
From the collection of Library of Congress. Free to download, adapt and use — no permission needed.
Credit lineUntitled photo, possibly related to: Freeport Sulphur Company, Grand Ecaille, Louisiana. Conveyor belt which carries sulphur from vats to hopper where it is loaded on the barges. 1943-01-01. Vachon, John. Farm Security Administration/Office of War Information Collection, Library of Congress. Public domain.