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ETHBIB.Bildarchiv Hs GKB . de Der Morteratschgletscher aufgenommen von Adolphe Braun Aus dem Bildarchiv der ETHBibliothek Zrich ETHBibliothek Zrich Bildarchiv epics ethz ch Bildarchiv BildarchivHsGKB html Adolphe Braun PDold Morteratsch Glacier Adolphe Braun in Switzerland Bildarchiv der ETHBibliothek Zrich