The morning market in Muang Sing, Luang Namtha Province, Laos. The biggest opium market in the Golden Triangle during the French colonial era. Note in the right corner, the lady who is "the bank" with her glass box as the exchange counter.
<a href="//commons.wikimedia.org/wiki/User:Tango7174" title="User:Tango7174">Tango7174</a>
CC BY-SA 4.0
<span class="int-own-work" lang="en">Own work</span>