Photo Gg2132-33: Composite Photo-The Pent House (guard tower) at the Cogido Barge Site, Don Nai River, December 1966. MP’s were assigned to the 40 foot tall tower to oversee physical security of the dock area. Other MP’s were assigned on the various ammunition barges in the river. PFC Allan Portnor of B Company, 720th MP Battalion in on the radio. HQ Call sign at that time was “Ballad Thrower,” Tower call sign was “Timber Butter.” Courtesy of SP/4 Alan M. Portnoy, B Company & 615th MP Company, 720th MP Battalion, October 1966 to October 1967.