Postage stamps never expire due to the passage of time. However, stamps that have been used or postmarked cannot be reused. Additionally, the price of postage may be raised, making it necessary to use additional stamps t... More »

Postage stamps for domestic mail in 1967 were five cents per ounce. Stamps for cards and postcards were only four cents. These prices had been in effect since Jan. 7, 1963. More »

As of January 27th, 2015, the U.S. postage rate for a postcard is 34 cents. Since the postal service was formed in 1971, stamp prices have generally stayed consistent with the 4.2 percent average annual rate of inflation... More »

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Postage for letters or packages to an FPO address is the same as the domestic U.S. rate, according to the U.S. Postal Service. For a first-class letter weighing an ounce or less, the rate is 49 cents, as of 2014. More »

Postage stamps from the United States do not expire, as long as they haven't been used already. Stamps can be used no matter how old they are, as long as correct postage is on the item to be posted. More »

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According to Stamps.com, postage stamps can be purchased online and on-demand. Customers can calculate postage instantly and print the postage on envelopes, paper or labels. The postage should be properly affixed before ... More »

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In 1992, the cost of mailing a 1-ounce letter by first-class mail was 29 cents. The rate went into effect in February 1991 and remained until the end of 1994, according to the U.S. Postal Service. The non-denominated "F"... More »

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