Wisconsin Tercentenary Issue
US Stamp Prices Scott Catalog 323 - 1c 1904 Louisiana Purchase Exposition
Licensing
37c Louisiana Purchase Bicentennial single
Limited Definitive Series
History of Virginia on stamps - Wikipedia
U.S. SCOTT #323 THROUGH #327 - LOUISIANA
Licensing (continued)
3782 - 2003 37c Louisiana Purchase Bicentennial - Mystic Stamp Company