Evening, I am in search of information and photos of UP B-1 and B-2. These two steam generators are ex C&O H7 tender conversions from what I can gather. I am thinking about having a custom made HO model based on 3d printing technology like http://www.shapeways.com/miniatures/model-trains?li=nav But I am having no luck at turning up any photos of what the top layout of these cars look like.

Edit: This is the only photo I have turned up so far. http://www.westernrailimages.com/Union-Pacific-Railroad/Union-Pacific-Railroad-1950s/7192300_J6858v#!i=1985298973&k=DfRdRpG&lb=1&s=A

These two cars UP sold to the SP in the 60's or 70's from what I have found at Utah rails thus far. Anyone have any photos of these two cars in service with the Southern Pacific?

Robert