Here a rather hard to find Marx 4 wheel plastic freight car. This is a GREEN Southern Pacific caboose with BLACK lettering.  Equipped with the one piece plastic "wheelsets" that Marx used for a short while on 4 wheel plastic and it has a plastic knuckle type coupler.  I believe that this car only was used in 1974, near the very end for Marx Trains.  Unfortunately, although the car is in great shape otherwise, there is damage to the ends of the catwalk on the roof (see the last pic).  Still a nice addition for someone's collection out there! Photos from all 6 sides, with a penny in the shots for size reference.  Priced to sell, with only actual USPS Ground Advantage or Priority shipping charged!