REMOVE

1. Sea Charts
2. Coasts
3. Vietnam
4. Paracel Islands
5. Hainan Sheng (China)
6. Macao (China)

WHAT

1. Nautical charts (1)
2. Printed (1)

WHERE

1. China Sea (1)
2. Hainan Sheng (China) (1)
3. Macao (China) (1)
4. Philippines (1)

More 

WHO

1. Horsburgh, James, 1762-18 … (1)

WHEN

1. 1848 (1)