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CHNB Bern Stadt Collection Gugelmann GSGUGEKNIGC.tif Information Creator Franz Niklaus Knig Bern Stadt Bern Aquatinta koloriert File CHNB Bern Stadt Collection Gugelmann GSGUGEKNIGC tif File CHNB Bern Stadt Collection Gugelmann GSGUGEKNIGE tif Swiss National Library CHNBCollection Gugelmann PDold User Swiss National Library