Coin Encyclopedia
Search and identify coins from around the world — with country, denomination, metal, mint, history, and how to tell them apart.
Panama-Pacific Exposition $50 (Octagonal)
An eight-sided $50 gold commemorative struck for San Francisco's 1915 world's fair, showing Minerva and her owl — the largest U.S. coin of its era.
Classic Commemorative
Louisiana Purchase Exposition Dollar (Jefferson)
An 1903 U.S. commemorative gold dollar honoring the Louisiana Purchase, featuring Thomas Jefferson's left-facing profile and struck for the 1904 St. Louis World's Fair.
Classic Commemorative