REMOVE

1. Vietnam -- Maps
2. China -- Maps
3. Sea Charts
4. China Sea -- Maps
5. China Sea
6. Hainan Island (China)

WHAT

1. Manuscripts (1)

WHERE

1. China (1)
2. Hainan Island (China) (1)
3. Paracel Islands (1)
4. Philippines (1)

WHO

1. Blaeu, Joan, 1650-1712, c … (1)

WHEN

1. 1677 (1)