The Douglas AIR-2 Genie was an unguided air-to-air rocket with a 1.5 kt W25 nuclear warhead. It was deployed by the United States Air Force and Canada during the Cold War. From Wikipedia
A vintage Douglas AIR-2 Genie missile, once capable of carrying a 1.5 kiloton nuclear warhead, was discovered in the garage of a deceased homeowner in Bellevue, Washington.