MEXICO. 8 Reales, 1863-O FR. Oaxaca Mint. NGC MS-64.KM-377.11; DP-Oa09. Tied for finest certified of the date and assayer combination at either NGC or PCGS. Struck with dies in use for a prolonged period of time the centers exhibit some flatness on the eagles breast and adjustment marks on the obverse. A fully lustrous example with satiny surfaces and attractive mild tone.