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