Aluminum Box Cars?


Ray Hutchison
 

There was an Illinois Central aluminum box car on E-bay last week.  Not so interested in the car, but it did get me to thinking... Great Northern had one (only) aluminum box car.  Ebay had a NP aluminum box car listed a while ago.  Where these only experimental cars (I think that I read that somewhere, probably in relation to the GN car)?  Or a prototype for some railways?  (Southern Pacific had the silver overnight cars, but not certain if they were aluminum or not).

Ray Hutchison

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