REMOVE

1. Discoveries in geography
2. Hainan Sheng (China)
3. South China Sea
4. Erhard Bros. (Firm), engrave …

WHAT

1. Bonvalot, Gabriel, 1853-1 … (1)
2. Printed (1)
3. Thematic Maps (1)

WHERE

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

More 

WHO

1. Erhard Bros. (Firm), engr … (1)

WHEN

1. [ca. 1892] (1)