US Stamps Values Scott Catalog 327 - 1904 10c Louisiana Purchase Exposition
U.S. & Worldwide Stamps & Postal History - January 11-12, 2006
Daniel F. Kelleher Auctions, LLC Sale - 787 Page 100
323 - 1904 1c Robert R. Livingston - Mystic Stamp Company
South & Central America Stamp Auctions - Current Auction – Latin American Philatelics
Louisiana Unused US Stamps (19th Century) for sale
Louisiana Unused US Stamps (19th Century) for sale
US Scott #323-327 Louisiana Purchase Exposition 1904, MH, Good color, Fine
US Stamp Value Scott Catalogue #327 - 10c 1904 Louisiana Purchase Exposition
Costs of US Stamp Scott Catalogue #323: 1c 1904 Louisiana Purchase Exposition
The March Collector's Series Sale by Spink and Son - Issuu
US Stamp Value Scott Catalogue #327 - 10c 1904 Louisiana Purchase Exposition
US Stamp Prices Scott Catalog 323 - 1c 1904 Louisiana Purchase Exposition