Most United States 3-cent stamps have a value of under $50 and often sell at between 65 and 90 percent of face value. The exceptions are rare stamps such as an 1851 3-cent stamp featuring a side-view portrait of George Washington.
A rare 3-cent stamp can fetch anywhere from $40 up to thousands of dollars if it is in mint condition. As of 2014, old 3-cent stamps are often sold at discount prices. This is due to the mass production of 3-cent stamps by the U.S. post office. Numerous 3-cent stamps are available to collectors. Some people buy old 3-cent stamps for postage, because they are useful for mailing letters.