Grading -By bidding in this sale, the bidder acknowledges the following: Grading is an art and not a science. The Grade herein represents the opinion of Apfelbaum based upon its experience. It is possible that two people will not always grade the same item alike. Also, as market conditions change, grading standards change, and will most likely do so in the future. Each bidder's own examination of the item(s) should be the criterion and not the grade represented by another. In any purchase or sale, the value of the item(s) is determined by the price. Should you not agree with our grading, any lot is returnable within thirty days for a full refund.