D: 2.3 in. (5.8 cm) We are not a professional appraisal agency nor restoration agency. The marking of the age and the review of the appearance are just our subjective judgments. Therefore, you must carefully consider it before participating in the auction, and you can rely on professional appraisal agencies for identification if necessary. After the auction has ended, if you are the highest bidder you must fulfill your commitments to purchase.