Zach, Franz Xaver, Freiherr von, Associated date(s): 1754-1832 Papers Encke, Johann Franz,; Zach, Franz Xaver, Freiherr von,; Burndy Library Manuscripts Collection (Smithsonian Libraries) Read more about Papers
Associated date(s): 1754-1832 Papers Encke, Johann Franz,; Zach, Franz Xaver, Freiherr von,; Burndy Library Manuscripts Collection (Smithsonian Libraries) Read more about Papers
