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Nuclear Weapons of the Atomic AgeUnited States, 1979First Day Cover with a plate number block of four stamps commemorating the 100th anniversary of Albert Einstein%u2019s birth, with a cachet depicting a nuclear blast. Issued on March 4.Guinea Bissau, 2005Miniature Sheet with one stamp commemorating military aviation of World War II, depicting the Hiroshima nuclear blast on the sheet. Issued on July 15.
