Richard Stern wrote:
"A neighbor gifted me this interesting depressed center flat car. It has no markings. Can anyone identify it and maybe provide a prototype photo? I'm guessing it is too modern for my 1950's layout, but I'm hoping otherwise."
Brian Carlson replied:
"Looks like the Walthers modern car.
Concur with Brian's assessment. Most of my magazines are in storage so I can't verify this right away, but Mike Rose's "Modifying Walthers Depressed Center Flat Car" in the October 2007 issue of Railroad Model Craftsman might have more information.