vintage 1950s Marx Union Pacific M10005 Streamliner tin litho windup toy train set. This is O gauge. It is complete in the original box with the wind up key, tracks and instructions. You will get all four little train cars. They are articulated and attached to one another to form one long train. They are in good condition with normal wear and tear consistent with age. Please see close-ups overall they present very well. It does come with the original box which I would say is a bit flimsy, but still holds the train in just right. The box does have a vintage garage scent to it. made in the USA. If you have any additional questions, feel free to send me a message. Thank you.