English: Position of Flevum as Phleum on the 4th Map of Europe from Ptolemy's Geography, depicting Germany.
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File:Claudii Ptholemaei Alexandrini Liber geographiae cum tabulis et uniuersali figura - et cum additione locorum quae a recentioribus reperta sunt diligenti cura emendatus et impressus (1511) (14802329133).jpg
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