1941 Keep ‘Em Rolling! [Planes]

Lionni, Leo, 1910-1999. Keep ’em rolling! [planes], poster, 1941; Washington D.C.. (digital.library.unt.edu/ark:/67531/metadc282/m1/1/: accessed November 27, 2024), University of North Texas Libraries, UNT Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.