5¢ Bridge at Niagara Falls
The 5¢ Bridge at Niagara Falls is the fourth of six in the 1901 Pan-American Exposition Commemoratives series.
This stamp portrays what was then the largest single-span steel bridge in the world, crossing Niagara Falls and linking the U.S. and Canada. Niagara Falls played an integral part of the World's Fair in Buffalo, and the hydroelectric power that it delivered turned on the spectacular "City of Lights", the most breath-taking display of electric light to date, and one of the highlights of the Fair.
The foreign destination fee for first class mail was 5 cents. Covers with an Exposition cancellation bring substantial premiums.