Yes, I can see the picture, now.
I don't think the 301 has a shellac finish. I'm thinking that maybe a carnauba wax may help protect from further deterioration.
It would not be rust as the 301 body is cast aluminum. There is something called aluminum rot, but I haven't seen any that looks like that.
Janey - Neat people never make the exciting discoveries I do.
Last edited by OurWorkbench; 08-05-2021 at 06:26 AM.
Reason: add'l thought