Mexico City, Mexico, pillar 2 reales, Ferdinand VI, 1754/3M. KM-unl (86.1 for type); CT-unl. 6.67 grams. Lightly rainbow-toned XF with old scratches in fields. Gilboy-unlisted, Yonaka-M2-54a (S). Actually a different manifestation of the overdate (showing the lower part of the 3) than the previous lot, possibly much rarer. Pedigreed to the Potomac collection of Mexican pillars. Auction Location: