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CHNB Landwirtschaft Gerte Collection Gugelmann GSGUGEKNIGF.tif Information Creator Franz Niklaus Knig Landwirtschaft Gerte Zweirderkarren darin eine Schaufel Bleistiftzeichnung Swiss National Library CHNBCollection Gugelmann PDold User Swiss National Library GSGUGEKNIGF helveticarchives ch aspx ID helveticarchives ch Swiss