Potosi, Bolivia, cob 8 reales, Philip III, assayer R (curved-leg), NGC VF 35. S-P15; KM-10; Cal-912. (Weight not specified.) Broad flan with some peripheral flatness (very weak assayer as a result) but choice full shield, good full cross, clear king's ordinal III, contrasting toning.
Estimate: 200 - 300 USD