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ETHBIBPiz Posta Biala Gliemsgletscher Tdi v. S. aus mInlandflgeLBS MH.tif cm exhibition history Institution ETHBibliothek Fotografie Glasplattennegativ object history PDoldauto Creator Walter Mittelholzer EPics Bildarchiv online org Template ETHBibliothek Piz Posta Biala Gliemsgletscher Tdi aus Uploaded with GWToolset ETHBIBPiz