Here is another Marx Toys O gauge plastic freight car.  This is a dark blue Erie #51170 drop end gondola with white lettering.  The car is equipped with 8 stamped metal wheels on metal axles, has the more common stamped steel truck side frames and has tilt plastic coupler on both ends (yes, they function fine, have their springs).  The car is in very nice shape, and the two plastic drop ends are both ORIGINAL Marx drop ends.  Nice addition to someone's collection.  Photos show the gondola from all 6 sides with a penny in most of the shots for size reference.  Priced to sell, with only actual USPS Ground Advantage or Priority shipping charged to the winner!