Charlie, the car number, date built, and lot number all match.  Number series for that lot was 159000-159999, built by the Despatch Shops in East Rochester NY.  The only thing I’d be uncertain about is the black roof, but some NYC box cars built ca. 1944-’45 did have black roofs and if IM went to the trouble to paint the roof black it’s likely that they had prototype information to that effect.  The one photo I have of a car in that series is a B/W shot taken in ’56 and it’s sufficiently weathered that I can’t tell whether the roof was black.  I’ll send you a scan of that photo off-list.

Richard Hendrickson