Below is a Dean Heacock pic of two real double
To get these cars completely accurate would
the walkways and filling the holes. I didn't want to do
mine. Also you will need to make the two doors different
the pics above. I left mine as is.
Mine came undecorated and I painted and decaled them myself. I am uncertain as to which schemes, if any, Athearn puts out for Chessie, B&O, C&O, or WM.