MEXICO, Colonial. Carlos III. King of Spain, 1759-1788. AR 8 Reales (38mm, 26.98 g, 12h). Columnario type. Mexico City mint. Dated 1766 Mo MF. Crowned coat-of-arms / Crowned hemispheres between crowned Pillars of Hercules ornamented with banners; all set on waves. Gilboy M-8-46; BW 28.4; KM 105. Hints of luster, hairlines. EF.