Cessna OE-1 VMO-6 United States Marine CorpsThese are 1 72 scale decals for the Cessna OE 1 Bird Dog, operated by VMO 6 (Marine Observation Squadron 6), United States Marine Corps depicted in the early transitional scheme of Army Olive Drab and still carrying its original U. S. Army serial number 50 1596. In the early days of Marine Corps Bird Dog operations, aircraft were transferred directly from U. S. Army stocks and pressed into service before full USMC repainting and renumbering could take