Secret Message written on D&H #7323 (1985)

A shot from June 12, 1985 with three different Guilford railroads (D&H, B&M, MC) is nice, but what interests me is what is scribbled on the front lower frame sill of #7323. In the dark remnants of battery acid corrosion someone wrote "___ JOB". I can't read the rest. Did they scrape away the rust, or did they write something with oil that resisted the affects of the battery acid? Who knows, but it would be interesting to model. 

Here it is zoomed in: