PRESIDENTIAL HELICOPTER SQUADRON HMX-1 SECURITY CHALLENGE COIN

This is a rare/older version of the United States Marine Corps HMX-1 Presidential Helicopter Squadron Security challenge coin.
I have had this coin for around 10 years, it has been kept in a protective cover (included) since I received it.
This coin has a nice 3d look to it, great for any challenge coin collection or member of the unit, Semper Fidelis.