Watch List notes:

MEXICO, Colonial. Carlos III. King of Spain, 1759-1788. AR 8 Reales (39.5mm, 26.93 g, 12h). Columnario type. Ciudad de México (Mexico City) mint. Dated 1770 Mo FM. Crowned coat-of-arms / Crowned hemispheres between crowned Pillars of Hercules. Gilboy M-8-51; BW 28.4; KM 105. VF, toned, edge bump.

From the B.H. Webb Collection. Ex Classical Numismatic Group Electronic Auction 131 (18 January 2006), lot 355.