Mine were issued, along with the 32nd Army Air Defense Command patches which replaced the 7th Army patch we previously wore.

If you dig enough, you'll find a key date: 20 August, 1965. That is the date when the Missile Battalions were re-designated.

The 1st Missile Battalion of the 67th Artillery Regiment became the 1st Battalion of the 67th Air Defense Artillery Regiment. In other words, it went from being a specialized battalion of regular artillery to a regular battalion of a new branch of artillery.