I see one of those "wagon top" box cars. Guess it's B&O. It's in the
distant center.
Yes, it is with its original door. If the date for the photo is correct it would be a recently repainted boxcar as the "Linking 13 Great States" emblem was first adopted in mid-1945 according to Chris Barkan's document titled "B&O Boxcar Lettering Arrangements 1920s - 1960s".
Freight cars really got dirty during the steam era.
