Hi Garth,
Very nice photo. Thanks for posting. And thanks for the notes about this car's history. As for the photo, the reweigh date on the 1614 ins SAC. 3-39, so photo date tightly bracketed between early 1939 and 1940 repainting of steps in aluminum. Good eye on the step color. I'd always assumed that they were aluminum.
Cheers,
James