REMOVE

1. Mongolia
2. India
3. Taiwan
4. Hainan Sheng (China)
5. [ca. 1892]

WHAT

1. Bonvalot, Gabriel, 1853-1 … (1)
2. Discoveries in geography (1)
3. Printed (1)
4. Thematic Maps (1)

More 

WHERE

1. Bay of Bengal (1)
2. China (1)
3. Hainan Sheng (China) (1)
4. Korea (1)
5. Myanmar (1)
6. Philippines (1)
7. South China Sea (1)

WHO

1. Erhard Bros. (Firm), engr … (1)

WHEN

1. [ca. 1892] (1)