The Alaska-Yukon-Pacific Exposition commemorated the nation’s northwest territory on the 10th anniversary of the 1897 Klondike Gold rush and the 40th anniversary of the 1867 purchase of Alaska. Delayed from 1907 to 1909 to avoid competing with the Jamestown Exposition.
Bureau of Engraving and Printing
U.S. Post Office; Smithsonian National Postal Museum: Arago: people, postage &amp; the post.