US 324 2c Louisiana Purchase Mint Top MI Plate Pair #2125 F-VF OG NH SCV $170
Louisiana Purchase Exposition, St. Louis 1904 - Stamp Community Forum
US Stamps Values Scott 324: 2c 1904 Louisiana Purchase Exposition
1904 Louisiana Purchase Stamps 323-327 - Set Unused in Holder
Prominent Americans Issue (1965-1978)
1999-2012-Air-Post-Year-Set
1904-Louisiana-Purchase-2-Jefferson-Carmine-FVF-NH
1903 G$1 LA Purchase, McKinley (Regular Strike) Gold Commemorative - PCGS CoinFacts
Fourth Bureau Issues (1922-1930)