I tried hard, but there was no way Mrs. N.O.S. was going to put on a pair of Levis and the 1940's equivalent of a high-viz fleece and pose with Agnes, so here is the before and after shot....
Agnes is in fact working on a Heil 2,000 gallon single axle tanker, but the pumping compartment is fairly similar to the Standard Steel Works 4,000 gallon unit.
Great photo, useful info for me is confirmation of the use of blue lettering, wording on engine panel, and the enormous paint run on rear fender, which I will have absolutely no trouble in re-creating :-D But which way should the hose be wound.....