Here's a UP car with the marks and number stenciled high on the left side of the door opening:
https://imagebase.lib.vt.edu/image_viewer.php?q=ns493

N&W car with the marks and number stenciled high on the right side:
https://imagebase.lib.vt.edu/image_viewer.php?q=ns2888

N&W car with the marks and number on the (Superior) door:
https://imagebase.lib.vt.edu/image_viewer.php?q=ns2912

David Thompson