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