REMOVE

1. Manuscripts
2. South China Sea
3. Vietnam -- coasts
4. Philippines

WHAT

1. China -- Maps (1)
2. Sea Charts (1)

WHERE

1. Borneo -- coasts (1)
2. Celebes Sea (1)
3. China (1)
4. Paracel Islands (1)

More 

WHO

1. Blaeu, Joan, 1596-1673, c … (1)

WHEN

1. 1668 (1)