REMOVE

1. Laos
2. Guangdong Sheng (China)

WHAT

1. Atlas Map (1)
2. World Atlas (1)

WHERE

1. Vietnam (1)
2. Yunnan Sheng (China) (1)

WHO

1. Hassel, S. G. H., 1779-18 … (1)
2. Ode, Henri (1)
3. Ph. Vandermaelen (1)
4. Vandermaelen, Philippe, 1 … (1)

WHEN

1. 1827 (1)