Guatemala, 4 reales, sun-over-mountains countermark (Type II, 1839) on a Potosi, Bolivia, cob 4 reales, 1756q, ex-Richard Stuart. KM-85.5. 13.13 grams. Bold full AVF countermark on top arm of approximately 60% full cross on About Fine host with clear date, lightly toned all over. Pedigreed to the Richard Stuart collection. (Estimate: $200 - 300)