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Greetings: A few months ago there was a brief flurry of activity concerning Tangent Models new Dri-flow hopper model. My question is this: What mineral or processed material was produced by American Colloid at Upton Wyoming in the late 1960s? According to the Equipment Distribution Manual that Don Halfield made available years ago, 26 of the 200 Dri-flow cars were assigned to American Colloid in 1968. Obviously, they shipped a lot of something there. What was it? The Alliance to Sheridan division local probably had a regular batch of these cars in the consist. Thanks. Jim Sandrin __._,_.___ Posted by: jamessandrin@yahoo.com __,_._,___ |