This is a photo of the damaged rear side of the piece posted in the For Sale album
This piece is a CANADIAN PACIFIC RY CO WITHYCOMBE in GREEN EIN . Vertical ridges above and below the wire groove. Unfortunately, despite it's great color and the fact that it shows pretty nicely from one side, this piece has had a hard life and is being sold as a "place holder". Several rear fractures and a glued piece as well as some missing glass is hidden in this photograph.
This color in the Guide goes for $250-300. I'll take $35 for it as a "specimin" A nice one good for a repair!! A rear photo will be found in the "General" section The front is available in the For Sale section [id=488821985]