it looks like r..
red dirt to me, as i look closer at the last set of pics on a hi res screen at the newish scratches on the cabinet front and sides, the white is poking through.
i had lightly used a scotchbrite fiber pad on my Bendix dryer cabinet on the most 'browned' paint sections and with a slight dusting of the paint, the white started to show through, plus it had some baked-on aged dirt.
Whatever brand of paint Bendix was using at that time seems to 'age' to a brown patina.
the surface rust seems to be on the door surround, where i assume the chrome was on.
some TLC needed...