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University claims substance prevents toning

I came across this story from last year while hunting for something else.
UNIVERSITY CLAIMS SUBSTANCE PREVENTS TONING
In 50-100 years from now, will tone-lovers be cursing these engineers?
Will it have any effect on the supply and demand for toned coins?
Many interesting ramifications if indeed this stuff is now commercially available, and in use by mints or other parties.
"A happy person is not a person in a certain set of circumstances, but rather a person with a certain set of attitudes"--Hugh Downs

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