The Post War Lionel Sunoco Double Dome Silver Tanker 6465 is a vintage O Gauge model train accessory manufactured by Lionel in the United States in 1950. This tanker car is designed in a silver color with a plastic material, featuring a double dome design and operated on a Three-Rail System. The vintage piece includes its original box and is decorated with a transportation theme, making it a collector's item for model railroads and train enthusiasts.