Where do I buy global stamps in the us? - Quora

Answer (1 of 4): Any US Post Office should have the "International Forever" stamps. However, auxiliary places that sell stamps are rarely likely to have those. Those international forever stamps are of course only good for the 1st ounce. If an envelope is heavier (and/or exceeds certain dimension

USPS Global Forever Stamps - 20 Stamps : Office Products

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