George III. 1760-1820. AR emergency dollar. 13.72 gm. 31.5 mm. Oval countermark of George III on 8 reales. Bolivia. Potosi. 1790. Transitional (2 year type) bust right; CAROLVS IV DEI GRATIA around, 1790 below / Crowned arms between pillars; HISPAN ET IND REX (Potosi mm) 8R P R around. S. 3765A. ESC 131 (S). Host coin KM64. Good Very Fine; fresh surfaces under attractive old toning; choice example; overstruck on a scarce 8R variety.