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Keywords from Image Description:
CHNB Baumstudie Collection Gugelmann GSGUGERIETERHC.tif Information Creator Heinrich Rieter der ltere Baumstudie Schwarze und weisse Kreide auf blauem Papier Swiss National Library CHNBCollection Gugelmann PDold User Swiss National Library GSGUGERIETERHC helveticarchives ch aspx ID helveticarchives ch Swiss National Library