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CHNB Fribourg von Nordwesten Collection Gugelmann GSGUGEBAUMANNF.tif Information Creator JeanHenri Baumann Creator Johann Jakob Sperli der ltere Fribourg von Nordwesten Fribourg Aquatinta Swiss National Library CHNBCollection Gugelmann PDold User Swiss National Library GSGUGEBAUMANNF helveticarchives ch aspx ID helveticarchives