Columbia subject headings:
Harvard subject headings:
Engineering--Awards--Germany--History.
Science--Awards--Germany--History
Siemens, Werner von, 1816-1892--Awards--Germany.
Technology--Awards--Germany--History.
Princeton subject headings:
Engineering--Awards--Germany--History.
Science--Awards--Germany--History.
Siemens, Werner von, 1816-1892--Awards--Germany.
Technology--Awards--Germany--History.