You are looking at a vintage American Flyer O gauge tender only. This O gauge 3/16" scale three rail die cast tender is from American Flyer's pre- World War 2 era.
This tender #558 goes with the 553 streamlined bullet nose torpedo style steam engine. it probably came with others as well, and will hook up to any of those three rail 3/16" scale O gauge locos by American Flyer pre-World War 2.
CONDITION: Complete with scratches. Trucks are good. Couplers good. Great to put with your Prewar Scale O three rail steam engine. Lots of paint wear as you can see. You call whether to repaint or leave original. With drawbar. Wear on the body.