Does toning put a cap on the grade of a coin?

I'm new to all of this from a grading standpoint, and know that toning can make a coin more desirable in many instances. But does toning to the coin below make the possible grade lower than if it had no toning? For example, it couldn't grade higher than MS 67 because of the toning?
Sorry for the size of the pictures ... I just figured out how to take meaningful, clear pictures as opposed to scans!
Thanks!

Sorry for the size of the pictures ... I just figured out how to take meaningful, clear pictures as opposed to scans!
Thanks!


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Given the era, finding a Proof 1953 quarter that grades higher than PR-67 would be very difficult. The production methods at the time plus the mint packaging and numismatic storage systems make it hard for all of the elements to come together to location a coin that grades higher than PR-67 or even PR-66.
As for toning issue some light toning would not preclude PR-68 or 69 IMO, but I’ve never seen a PR-69 or 70 coin that had toning. Of course the only examples I’ve seen were very recent coins since I’m not a player in very high grade older Proof pieces.
I might add the really attractive toning might add a point for a coin in the PR-65 or 66 range. At least that seems to have been the case with a few coins I've seen.
<< <i>I might add the really attractive toning might add a point for a coin in the PR-65 or 66 range. >>
Is it because toning helps to hide hairlines that are a grading factor on proofs?
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Bill, the 1953 shown is a proof from a set that I got from my father that "appears" to be out of this world. None of the coins appear to have a single mark on them at all. There is also a 1954 and 1955 set in the same condition (actually, just 1c, 5c, 10c and 25c).
<< <i>Ain't nuttin more boring than an all white set of silver coins. Attractive toning won't hold back the grade - attractive toning to PCGS that is.
Attractive is a relative word though since what you find attractive, Ricko finds "distractive".
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<< <i>Ain't nuttin more boring than an all white set of silver coins. Attractive toning won't hold back the grade - attractive toning to PCGS that is.
HUH? I thought "boring" and problem-free was the objective of any high-grade coin collection? So, you want action on your coins? Why not save a lot of money and collect scratched-up coinage, lots of action there. Why is a complete surface color change not a detractor to a coin's grade, yet the tinyest scratch is? I know why, (in my best Forest Gump voice) "Because colors is purdy". Not trying to be insulting, just razzing you toner enthusiasts, mostly. I understand the appeal, just don't agree, that's all.