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ETHBIBRti FabrikInlandflgeLBS MH.tif cm exhibition history Institution ETHBibliothek Fotografie Glasplattennegativ object history PDoldauto Creator Walter Mittelholzer EPics Bildarchiv online org Template ETHBibliothek Rti Fabrik Uploaded with GWToolset ETHBIBRti FabrikInlandflgeLBSMH epics ethz ch tif ETHBIB MittelholzerInland