REMOVE

1. Thematic Maps
2. Philippines
3. South China Sea
4. China
5. Mongolia
6. Erhard Bros. (Firm), engrave …

WHAT

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

WHERE

1. Bay of Bengal (1)
2. Hainan Sheng (China) (1)
3. India (1)
4. Korea (1)

More 

WHO

1. Erhard Bros. (Firm), engr … (1)

WHEN

1. [ca. 1892] (1)