Well, good news. I found an image with the Bucyrus Erie logo and a friend PhotoShopped it into a JPG. This will become a decal and wind up on a Lionel Shovel kit. The Lionel Shovel is a good stand-in for a Bucyrus Erie (15.0.B?) machine used by Standard Slag in their Halfmoon (Weirton) facility.
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I found a clear image of the Standard Slag logo, but it won't work "as is" for a decal. I'm in the process of making a logo with a drawing package.
George