TRANQUEBAR: Frederik VI, 1808-1839, AR 2 fano, 1816, KM-173, Gray-156, Jensen-360, crowned F VI, NGC graded AU50, RR, ex Dr. John Lund Collection, ex Brian Hannon. Graded as "AU 50 BN " on the slab, but silver cannot by brown, so BN is just a typo.
Estimate: 800- 1,000 USD