Mexico City, Mexico, pillar 4 reales, Ferdinand VI, 1752 MF, NGC AU 55. Yonaka-M4.52a; KM-95; Cal-386. Light rainbow toning over choice luster for the assigned grade, faint adjustment marks on shield, tied with two others for second finest in NGC census behind a single MS 61, common variety with flat-bottomed crowns atop pillars.
Estimate: 700 - 1000 USD