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CHNB Bern Collection Gugelmann GSGUGEKELLERRF.tif Information Creator Reinhardt Keller Bern Der Dargestellte steht vor der Befestigung des Spalenquartiers in Basel Im Hintergrund rechts das Spalentor Bern Umrissradierung gouachiert Swiss National Library CHNBCollection Gugelmann PDold User Swiss National Library GSGUGEKELLERRF