Emblem of the 11th Weather Squadron, 1961
USAF
1961
<a rel="nofollow" class="external free" href="http://media.defense.gov/2015/Sep/11/2001329838/-1/-1/0/AFD-150911-027.pdf">http://media.defense.gov/2015/Sep/11/2001329838/-1/-1/0/AFD-150911-027.pdf</a>, page 12-9