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CHNB Luzern von Nordwesten Collection Gugelmann GSGUGEBLEULER.tif Information Luzern von Nordwesten Gegen den Rigi von Nordwesten Luzern Gouachemalerei Swiss National Library CHNBCollection Gugelmann PDold User Swiss National Library GSGUGEBLEULER helveticarchives ch aspx ID helveticarchives ch Swiss National Library Prints