The Lionel #6-17884 1990 TTOS Convention Car is a brand new, C-10 mint condition box car featuring the Columbus and Dayton Terminal Co. corporate roadname. This O gauge freight car is made of plastic and diecast materials, with a gray color and dark red lettering, making it a unique addition to any model railroads and trains collection. Produced in 1990, this collectible piece is a rare find for enthusiasts of Lionel trains and train enthusiasts in general.