1904 OFFICIAL SOUVENIR MEDAL of Louisiana Purchase Exposition
Obverse: Conjoined busts of Napoleon & Jefferson
Reverse: Relief map of U. S. with Louisiana Purchase across that portion representing extent of purchase Louisiana Territory 1803
1,000,000 Square Miles $15,000,000
HK-302 - Yellow Bronze 21 mm
I have a heavily worn silver version as well. Still looking to cherry pick that "No Star" variety.
I was reading a bit on the internet about the fair again tonight. I saw two amazing things besides reading about the usual human zoos.
A group of Pygmies that were displayed.

During the World Fair in 1904, E. M. Bayliss brought infant incubators for exhibition on The Pike where approximately ten nurses cared for twenty-four neo-natal babies while in the infant incubators.
The exhibit required an entrance fee of twenty-five cents and visitors could also purchase souvenirs and refreshments from the adjoining shop and cafe. These proceeds, totaling $181,632, helped to fund Bayliss's project.
There were some setbacks with the infant incubator display as the sanitary conditions were not always consistent and
some babies died of illness.

The incubator area was then modified by installing glass walls to separate the babies from visitors, thus decreasing the exposure of the infants.
andOn June 5, 1904, a bullfight scheduled for an arena just north of the fairgrounds, in conjunction with the fair, turned violent when Missouri governor Alexander Monroe Dockery ordered police to halt the fight in light of Missouri's anti-bullfighting laws.
Disgruntled spectators demanded refunds, and when they were turned away, they began throwing stones through the windows of the arena office. While police protected the office, they did not have sufficient numbers to protect the arena, which was burned to the ground by the mob.
The exposition fire department responded to the fire, but disruption to the fair was minimal, as the riot took place on a Sunday, when the fair was closed.