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CHNB Betlis Seerenbachflle Teilansicht Collection Gugelmann GSGUGEGESSNERS.tif Information Betlis Seerenbachflle Teilansicht Blick auf einen Teil der Seerenbachflle Betlis Swiss National Library CHNBCollection Gugelmann PDold User Swiss National Library GSGUGEGESSNERS helveticarchives ch aspx ID helveticarchives ch Swiss National