Colection

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Austria
Joseph II Emperor
Austria
Centenary of the birth of Christo Jassenov
Bulgaria
Carl Arthur Scheunert (1879-1957)
Germany
Otto Hahn (1879-1968)
Germany
Max von Laue (1879-1960)
Germany
Bernard Koenen (1889-1964)
Germany
Philipp Dengel (1888-1948)
Germany
Fred Oelssner (1903-1977)
Germany
Joseph Miller (1883-1964)
Germany