Cessna O-1G 51-12785 United States ArmyThese are 1 72 scale decals for Cessna O 1G Bird Dog 51 12785, assigned to the 220th Aviation Company, United States Army. The O 1G was a conversion of earlier L 19 airframes, redesignated under the 1962 tri service naming system, and retained in Army service for liaison and observation duties during the Vietnam War era. The 220th Aviation Company was a U. S. Army aviation unit that operated in Vietnam, flying Bird Dogs in the critical battlefield