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CHNB Grimselsee mit dem Hospiz Collection Gugelmann GSGUGEWOLF.tif Information Creator Caspar Wolf Creator CharlesMelchior Descourtis Grimselsee mit dem Hospiz Grimselsee Farbkupferstich Swiss National Library CHNBCollection Gugelmann PDold User Swiss National Library GSGUGEWOLF helveticarchives ch aspx ID helveticarchives