Found this in an antique store last year and forgot about it. As far as I can tell, this is from the early 50s, an N&W J-type out of Roanoke Shops.
On the back:
Norfolk and Western Railway’s streamline, all-coach, daylighter along New River in Virginia
Attribution, etc.:
Pub. by Roanoke Photo Finishing Co., Roanoke, Va.
K-158-D-12 44420
Dextone Made Direct from Kodachrome and Ansco Color by Dexter Press, Pearl River, N. J.
Blogging the Railroad Tunnels 
You do know you can go ride this (or one of her sisters if this isn’t 611). I chased 611 for miles last year!!! http://fireup611.org/
Great website! Proud legacy of Roanoke Shops! I spent a little time in Roanoke when I was kid, visiting my brother. Coming from a relatively small world, I thought the city was pretty awesome, especially the hotel downtown that had a flowing spring in the basement, near the tap room.