Mexico City, Mexico, cob 8 reales, 1691 (L), very rare, ex-Pasay Hoard. S-M21; KM-46; Cal-651. 25.52 grams. Narrow rectangular flan with frosty high-grade surfaces (non-toned AU or so) despite weak strike (mostly flat), yet with clear side of 9 and full 1 of date next to mintmark oM.
Estimate: 250 - 375 USD