Daniel F. Kelleher Auctions, LLC Sale - 776 Page 1
323-27 - Complete Set, 1904 Louisiana Purchase - Mystic Stamp Company
U.S. and Worldwide Stamps; Specialized Russia - September 16-18, 2008
Louisiana Postage - Denmark
US Stamps Prices Scott Cat. #323: 1904 1c Louisiana Purchase
The March Collector's Series Sale by Spink and Son - Issuu
US Stamp Prices Scott Cat. # 325 - 3c 1904 Louisiana Purchase
Daniel F. Kelleher Auctions, LLC Sale - 708 Page 1
United States and Worldwide Stamps and Postal History
Costs of US Stamp Scott Catalogue #323: 1c 1904 Louisiana Purchase