REMOVE

1. China -- Maps
2. Manuscripts
3. China
4. Cambodia
5. Borneo
6. Paracel Islands
7. Celebes Sea

WHAT

1. Borneo -- Maps (1)
2. Philippines -- Maps (1)
3. Sea Charts (1)

WHERE

1. China Sea (1)

More 

WHO

1. Blaeu, Joan, 1596-1673, c … (1)

WHEN

1. 1666 (1)