The switchman’s precarious position allows the full view of the caption at the bottom left side of the single sheathed boxcar:
East Roch. NY
While I admit that I have not been looking in that position before, this is a new caption to me. Likely the Dispatch Shops and was this confided to NYC or did other railroads add this notation on the side of their cars?
taking a break from adding grab irons to boxcars
south of Mike Brock