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CHNB Geltenschuss Wasserfall zu oberst im Lauenental Collection Gugelmann GSGUGEWOLF.tif Information Creator Caspar Wolf Creator CharlesMelchior Descourtis Geltenschuss Wasserfall zu oberst im Lauenental Geltenschuss Farbkupferstich Swiss National Library CHNBCollection Gugelmann PDold User Swiss National Library GSGUGEWOLF helveticarchives