While searching for what happened to ole number 500, I found a couple of interesting tank cars in the July 1945 ORER:

Ozark Chemical Company

OZCX 1 and 2

11,586 and 11,589 gal capy

200,000 lb capy

And I said to myself:  A 100 ton tank car in 1945?  And ?????

Ed

Edward Sutorik