View cart “NP#20 Northern Pacific early piggyback” has been added to your cart. GTW#581000 GTW 581000-581999 single sheath box car$8.00 36 in stock GTW#581000 GTW 581000-581999 single sheath box car quantity Add to cart SKU: GTW#581000 Category: Other Railways US Share this:FacebookX Description Description Set does one car built 1923. Related products Add to cart GTW#113700 GTW 113700-113874 twin hopper $8.00 Add to cart GTW #470250 GTW 470250-470749 40’L Box car 6’door blt ’21 rblt’39 green leaf $8.00 Add to cart GTW#112100 GTW 112100-112199 3 bay hopper $8.00 Add to cart CNR#300-7 Classic era GTW passenger car set – 2 sheets $16.00