NGC guarantees that all coins submitted to it shall be graded by a minimum of three (3) NGC grading experts in accordance with NGC grading standards and procedures. In the event the purchaser of an NGC coin believes that the coin has been overgraded with respect to such standards and procedures, the purchaser may submit any such coin to NGC for regrading under a procedure which assures that graders are unaware of the grade originally assigned. The fee for such regrading shall be $20. If the grade determined under such regrading procedure is lower than that originally assigned to the coin, NGC shall pay the difference between the fair market value of the coin, as determined by arm's length current bids of NGC dealers, at the newly established grade and the grade originally assigned to such coin.

Warning: Exception to NGC guarantee copper coins can oxidize after sealing. In such an event, the coin grade may diminish. Therefore, the NGC guarantee shall not Be applicable to copper coins. Clerical error with respect to the description or grade of the coin which would be readily noticed on inspection shall not be subject to the NGC guarantee herein stated.