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CHNB Zrich Wollishofen Collection Gugelmann GSGUGEFSSLIJMF.tif Information Creator Johann Melchior Fssli Zrich Wollishofen Wollishofen bei Zrich Zrich Kupferstich Swiss National Library CHNBCollection Gugelmann PDold User Swiss National Library GSGUGEF SSLIJMF helveticarchives ch aspx ID helveticarchives ch Swiss National