Al Worden's group of three challenge coins associated with the HMX-1 United States Marine Corps presidential helicopter squadron: one features the presidential seal on one side, and the HMX-1 insignia on the other; one has the presidential seal on one side, and a depiction of helicopters outside the White House on the other; and the last is a functional bottle opener, with small seal on one side and two helicopters on the other. In overall very fine condition.
