REMOVE

1. Coasts
2. Hainan Sheng (China)
3. [17--]

WHAT

1. General Maps (2)
2. Manuscripts (2)
3. Waterways (1)

WHERE

1. Borneo (1)
2. Cambodia (1)
3. China (2)
4. East China Sea (1)
5. Hainan Sheng (China) (2)
6. Japan (1)
7. Korea (1)
8. Paracel Islands (1)
9. Philippines (1)
10. South China Sea (1)
11. Taiwan (2)
12. Vietnam (1)

Less

WHEN

1. [17--] (2)