Hi Carl,
I really do appreciate your knowledge about the chemicals and odd things that can cause a coin to be uncollectable.
The trip through the washing machine didn't seem to affect the natural glow of the nickel or dimes, and it did not affect the cartwheel of the penny. Although I must admit that finding a coin that clean in circulation would leave me to believe it might have been cleaned in a manner not accepted by our collecting community.
On the other hand, maybe this is a good way to clean certain coins...
As far as the metal allergies go, it is true that I cannot have metal touching my skin. I have had reactions to just about every metal used for eyeglasses, watches, necklaces, rings, bracelets, and the metal rivets in trousers, and believe it or not, to the gold and amalgamate fillings in my teeth. My dentist had to replace four front crowns with porceline crowns after we discovered the gold inside the crowns I had were making my gums sore and infected. Since then, no problem.
The problem with coins is when I am rolling them to take to the bank. Handling the coins causes my hands to start aching and itching after awhile, at which time I stop and begin later when the problem has had time to resolve itself.
As far as the other metals are concerned, tableware, etc., I try to keep contact at a minimum. That includes other things that have metal in them. Oh, by the way, even if I could wear a watch, it would have a short life on my wrist... everyone I have owned has died on me. Too much electricity in my system. Oh, and I do not have to worry about toys as I am a bit too old for them... and I do not use salt because of my food allergies.
Unfortunately my allergies don't stop there, but I won't go into that here. It is just that I have gotten so use to the problems that avoiding the obvious contacts and limiting my actual contact is much easier than if I had just one allergy.
Thanks for being concerned.
Corky