Three items signed by the World War II aviators: two ballpoint signatures of James H. Doolittle (one inscribed to "John") on individual white 5 x 3 cards, both encapsulated by PSA/DNA; and a commemorative cover honoring the Allied victory over Japan, featuring a 'First Day of Non-Issue' stamp depicting a mushroom cloud, signed in blue felt tip by Enola Gay pilot Paul Tibbets. In overall fine condition.