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ETHBIBSertigtal Sertig Drfli Hoch Ducan Piz Kesch aus mInlandflgeLBS MH.tif cm exhibition history Institution ETHBibliothek Fotografie Glasplattennegativ object history PDoldauto Creator Walter Mittelholzer EPics Bildarchiv online org Template ETHBibliothek Sertigtal Sertig Drfli Hoch Ducan Piz Kesch aus Uploaded with GWToolset