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CHNB Thun Schloss Thun Gesamtaussenansicht Collection Gugelmann GSGUGESCHIELC.tif Information Thun Schloss Thun Gesamtaussenansicht Ansicht des Schlosses Thun von Osten Thun Swiss National Library CHNBCollection Gugelmann PDold User Swiss National Library GSGUGESCHIELC helveticarchives ch aspx ID helveticarchives ch Swiss National