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original: "衆葡萄亞合圖" (Zhong Putao Ya He Tu). The first character "Zhong" (multitude/general) may be a transcription error for "Ou" (Europe), which would make the title "Map of Portugal in Europe." "Putao Ya" is the phonetic rendering of Portugal used since the Ming Dynasty.
Each map is divided into quarters Map of the Atlantic OceanLongitude (Top): 7 | 8 | 9 | 10 | 11 | 12
Latitude (Left): 43 | 42 | 41 | [blank] | 39 | 38 | 37 | 36