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CHNB Ringgenberg Schlossruine und Kirche von Osten Collection Gugelmann GSGUGEWOLF.tif Information Creator Caspar Wolf Creator CharlesMelchior Descourtis Ringgenberg Schlossruine und Kirche von Osten Ringgenberg Farbkupferstich Swiss National Library CHNBCollection Gugelmann PDold User Swiss National Library GSGUGEWOLF helveticarchives