REMOVE

1. Sea Charts
2. Manuscripts
3. China Sea -- Maps
4. China
5. Vietnam
6. China Sea

WHAT

1. China -- Maps (1)
2. Vietnam -- Maps (1)

WHERE

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

WHO

1. Blaeu, Joan, 1650-1712, c … (1)

WHEN

1. 1677 (1)