Check the listing for details. Japan Attacks Pearl Harbor - World War II - Mint Condition U.S. Postage Stamp. Condition: New. Listed at 3.50 USD. For sale is one mint, as issued, U.S. postage stamp. This stamp was issued by the United States Postal Service to commemorate the Japanese attack on Pearl Harbor. This Pearl Harbor stamp was issued on September 3, 1991 and is still valid for use on any U.S. Mail. This stamp will make a fine addition to your World War II collection. Perhaps you will use it to add a unique touch on mail addressed to fellow World War II /Pearl Harbor historians. It could also make a unique gift for any 'hard to shop for' character your list. Your stamp will be enclosed in a protective glassine envelope and sent via U.S. First Class mail. Actual USPS issued stamps will be used to pay postage. Additional Pearl Harbor stamps can be purchased and will be shipped incurring no additional postage charge. Thank you for your consideration.