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ETHBIBAulinachopf Grossberg Flumserberg Walensee aus mInlandflgeLBS MH.tif cm exhibition history Institution ETHBibliothek Fotografie Glasplattennegativ object history PDoldauto Creator Walter Mittelholzer EPics Bildarchiv online org Template ETHBibliothek Aulinachopf Grossberg Flumserberg Walensee aus Uploaded with GWToolset