This NSN kit car consists of an assortment of cast white metal parts. Decals are included, whereas trucks and couplers are not. John Coots (the creator of these cars) passed away in 2008, so this model is no longer available. It was one of John's last releases.
The prototype for this model is supposedly an SP F-70-36 (built for the WP by Gunderson in 1964).
(Thanks for the pictures and info, Al)