It's Coach 252, and it's been purchased by Don Shank's "Rio Grande Southern RR Co" (yes, he was able to secure the old corporate name!) for
future display at South Fork, CO - part of his Creede project.
I gather he's storing it at Durango until he can restore it and put it on display (or maybe use it - not sure on that).
My 'RGS Remains' site has details on that and most of the other remaining RGS equipment, although I'm still adding things as I hear about
them.