For many years, medals were given to American Indian chiefs as gifts from each of the nations that tried to start colonies in North America.
The front of the medal usually had a picture of that nation's king or queen.
Thomas Jefferson followed that pattern by having his own bust on his medal.
But on the back, instead of the nation's coat of arms or other symbols, Jefferson's Peace Medal showed a handshake (a well-known sign of peace and friendship) and the words "Peace and Friendship."
A crossed pipe and tomahawk were also part of the design.