Thank you for the very generous offer!
I will pass for now.
I would never want to sell something that could be a hazard to another person. I did some research and decided to try to clean some of the worst cases that I could quickly pull out.
4 of these I did a quick vinegar and salt soak. Then a real good rinse with soapy water. I realize some people don't like this method but I have seen lots of posts saying it's OK if not soaked too long. I also read that the military did it for years.
The 2 pieces in the first picture are some of the worst.
I just used Brasso and metal polish on those. I didn't touch the base of the 1 piece so I could see the difference after cleaning and a quick polish.
The rest I did a quick polish on also. I can see absolutely no pitting or defects that I think would be cause for concern.
Here are the before and after pics.