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CHNB Bern Gesamtansicht von Sdosten Collection Gugelmann GSGUGEABERLIB.tif Information Bern Gesamtansicht von Sdosten Bern Radierung Swiss National Library CHNBCollection Gugelmann PDold User Swiss National Library GSGUGEABERLIB helveticarchives ch aspx ID helveticarchives ch Swiss National Library Prints and Drawings Department