Need help on DT&I 1923 ARA (X 29) boxcar paint

O Fenton Wells

I'm building a DT&I 1923 ARA boxcar starting with a Red Caboose X 29.  The cars were numbered I need to know if the roof and ends were painted balck on these cars.  I know on later cars they were.  I'm modelling 1953 so if any DT&I guru knows or has a photo they would share I would be grateful.
Thanks in advance,

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