|The 1904 Louisiana Purchase Exposition was a major World’s Fair that was held in St. Louis, Missouri. As part of the World’s Fair, the 1904 Summer Olympics were also held in St. Louis. Several medals were produced in connection with the 1904 World’s Fair. This is one of the so-called Exhibition Palace Dollars from the Louisiana Purchase Exposition featuring the Palace of Varied Industries, the Palace of Transportation and the Palace of Art which is listed as HK-321 in the Hibler-Kappen book on So-Called Dollars and has been graded MS66DPL by NGC and is encapsulated in a newer-style edge-view holder. The obverse features a detailed rendition of the Palace of Varied Industries with notes that it was 525 by 1200 feet and cost $604,000. The reverse is a detailed rendition of the Palace of Transportation with notes that it was 525 by 1300 feet and cost $696,000 and a detailed rendition of the Palace of Art with notes that it was 886 feet long and cost $1,000,000. This piece is bright white and very lustrous. The piece also has strong prooflike mirrored fields with frosty devices. This piece is by far the finest known example of the HK-321 graded by NGC as the only MS66DPL; the next closest specimens are a few MS64DPL examples and a few of MS64PL pieces. An opportunity to get the finest known example of this so-called dollar.