Has anyone ever sent a coin graded by PCGS or NGC back for their "re-grading" process and received a higher grade? NCG at least claims that they remove the coin from its holder before regrading, but PCGS does not make that claim (although I expect they too remove the coin.

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ON a different note: Greetings! To all observers
"Happy Easter" or "Happy passover."


If there are any I missed or whatever, I hope you had great week end.!