“NP#20 Northern Pacific early piggyback” has been added to your cart. View cart NP#39731 Northern Pacific double sheath 40′ box car$9.00 15 in stock NP#39731 Northern Pacific double sheath 40' box car quantity Add to cart SKU: NP#39731 Category: Other Railways US Share this: Click to share on Facebook (Opens in new window) Facebook Click to share on X (Opens in new window) X Related products Add to cart NP#120 Northern pacific 10ft diameter monad for watertowers $9.00 Add to cart GTW#581000 GTW 581000-581999 single sheath box car $9.00 Add to cart WAB#48507 Wabash single sheath auto car $9.00 Add to cart GTW #470250 GTW 470250-470749 40’L Box car 6’door blt ’21 rblt’39 green leaf $9.00