BUY PRINT    January 1943. "The operator of a zinc ore loader at a large smelting plant is protected against harmful dust by a mask. From the Eagle-Picher plant near Cardin, Oklahoma, come great quantities of zinc and lead to serve many important purposes in the war effort." 4x5 inch nitrate negative by Fritz Henle for the Office of War Information. | Click image for Comments. | Home | Browse All Photos