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CHNB Unterseen von Nordwesten Collection Gugelmann GSGUGEABERLIC.tif Information Creator Johann Ludwig Aberli Unterseen von Nordwesten Ansicht von Unterseen an der Aare gegen das Lauterbrunnental und die Jungfrau Unterseen Bleistiftzeichnung Swiss National Library CHNBCollection Gugelmann PDold User Swiss National Library GSGUGEABERLIC