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Aqua Blue Proof Indian cents
In my opinion this color is not a natural color from the sulfer tissue paper in which these coins were originally wrapped.
This color seems to be the flavor of the time.I never remember seeing this color in the early 1990's.What is your experience ?
Stewart
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Knowledge is the enemy of fear
("Cared" means appliying care or blue ribbon coin preserver to the coin. This will cover up or mute the toning)
i hope more old timers share their thoughts.
I'm not sure on the proofs, but there seem to be a lot of blue toned "brown" cents in TPG's holders that I'm fairly sure are the product of MS70.
David
And people use to put Laquer on copper to keep it red.
Not anymore
Stewart
NGC PR66 BN
NGC PR65RB
Knowledge is the enemy of fear
that is pretty good proof that they were shaking and baking coins back then.
imagine that.
oh you meant...
https://www.pcgs.com/setregistry/quarters/washington-quarters-major-sets/washington-quarters-date-set-circulation-strikes-1932-present/publishedset/209923
https://www.pcgs.com/setregistry/quarters/washington-quarters-major-sets/washington-quarters-date-set-circulation-strikes-1932-present/album/209923