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CHNB Ringgenberg Schlossruine und Kirche von Nordosten Collection Gugelmann GSGUGEBLEULER.tif Information Creator Johann Heinrich Bleuler Ringgenberg Schlossruine und Kirche von Nordosten Ringgenberg Gouachemalerei Swiss National Library CHNBCollection Gugelmann PDold User Swiss National Library GSGUGEBLEULER helveticarchives