09-02-2008, 06:16 PM
The general term is "revenue stamp."
Dealer Eric Jackson has a comprehensive site:
http://www.ericjackson.com/
Re the Philippines: U.S. stamps were overprinted for use in the Philippines after the U.S. won the Spanish-American War in 1898. This continued for several years until the Philippines got their own stamps. U.S. stamps were also overprinted for use in Cuba and Puerto Rico (spelled "Porto Rico" on the overprints).
Dealer Eric Jackson has a comprehensive site:
http://www.ericjackson.com/
Re the Philippines: U.S. stamps were overprinted for use in the Philippines after the U.S. won the Spanish-American War in 1898. This continued for several years until the Philippines got their own stamps. U.S. stamps were also overprinted for use in Cuba and Puerto Rico (spelled "Porto Rico" on the overprints).