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ETHBIBHedingen aus mInlandflgeLBS MH.tif cm exhibition history Institution ETHBibliothek Fotografie Glasplattennegativ object history PDoldauto Creator Walter Mittelholzer EPics Bildarchiv online org Template ETHBibliothek Hedingen aus Uploaded with GWToolset ETHBIBHedingen aus mInlandflgeLBSMH epics ethz ch tif ETHBIB