I have seen one set of RC golden rods, of the latest generation(late 70s), in a red anodized finish. I'm assuming that this was a one off thing, but who knows.
MTC made forged aluminum rods back then, and before the golden rods came out, RC supplied forged alloy rods himself. There was Yoshimura, who made very lightweight aluminum rods for road racing. I'm sure there were others as well. RC, as far as a know, we're the only ones selling machined aluminum rods from billet plate stock. The others were forged. Not an endorsement by any means, just a point of interest.
Are you trying to identify a set of old aluminum rods? Post a photo or two, and I'll bet you'll get an answer. No promises if will be the RIGHT answer, but we'll make up something that sounds believable.
I've got years of BS training...
George