REMOVE

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

WHAT

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