• Map
    Erde und Planeten, Erde und Mond Appears in: Sydow-Wagners methodischer Schul-Atlas. 1923, 1926 and 1928 editions. Available also through the Library of Congress Web site as a raster image. LC copy mounted on cloth.
    • Contributor: Wagner, Hermann - Sydow, E. Von (Emil) - Justus Perthes (Firm : Gotha, Germany)
    • Date: 1923