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CHNB TrunTruns von Nordosten Collection Gugelmann GSGUGEBLEULERb.tif Information Creator Johann Ludwig Bleuler Creator Johann Jakob Falkeisen Trun von Nordosten Trun Aquatinta koloriert Swiss National Library CHNBCollection Gugelmann PDold User Swiss National Library GSGUGEBLEULERb helveticarchives ch aspx ID helveticarchives