OMI 1930-built GATC 10,000 Gal double dome tank car

Fred Jansz
 

Gents,
purchased this OMI 1930-built GATC 10,000 Gal double dome tank car recently.
However, I have no info about these cars at all regarding time span and paint schemes.
I model/collect 1950 (the year).
Any help is appreciated.
Thank you, best regards,
Fred Jansz

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