Also: on the same page of the book there's a picture of a 1952-built hopper #62004, with trucks I've never seen before. Does anyone know what type these are?
Frank, I dunno what's on that hopper as I don't have the photo but I do know that U.S. Steel was making car buying decisions for the railroads it owned and that included the B&LE. To get to the point, in the early 50's USS was buying all the same hopper design for it's "roads" and many of those, perhaps all, had clasp brakes attached to the trucks. Is that what you're seeing?