original_query: What is the Louisiana Purchase Exposition gold dollar?
query: What is the Louisiana Purchase Exposition gold dollar?
answer: The Louisiana Purchase Exposition gold dollar is a commemorative coin issued in 1903 to commemorate the Louisiana Purchase Exposition held in St. Louis in 1904.  It was struck in two varieties, one depicting Thomas Jefferson and the other William McKinley.  Initially, they did not sell well and many were melted down, but they are now worth hundreds or thousands of dollars depending on condition.