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| Preview | Issue Date | Title | Author(s) |
|---|---|---|---|
 | 1931 | Dr. phil. Arnold Hirzel, Aarau (1861-1931) | Alder, Georg; Helbling, Alfred |
 | 1930 | Wilhelm von Wyss (1864-1930 ; Mitglied der Gesellschaft seit 1911) | Escher, Hermann |
 | 1880 | Salomon Voegelin-Escher, 1804-1880 | - |
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