Erica Taylor, The Tom Joyner Morning Show says:

"In Camp Mackall, North Carolina the first all-black parachute Infantry platoon was activated on November 25,1944. They would be called the 555th Battalion, a.k.a. “The Triple Nickles.” They were called the Triple Nickles because 17 of 20 soldiers selected from the Buffalo Soldiers 92nd Infantry in Arizona made it through the test platoon at Fort Benning. The unit's name came from the old English spelling and identified with three buffalo nickels joined in a triangle or pyramid."