Watch List notes:

Potosi, Bolivia, cob 2 reales, Philip II, assayer B (5th period), borders of x's on both sides, NGC AU 55, finest known in NGC census. S-P14; KM-3.4; Cal-370. 6.67 grams. Broad flan for the period, with bold but somewhat crude shield and cross, prominent borders of x's, full P-B, no toning, lustrous all over indicative of very high grade (the best of eleven in current NGC census, which does not distinguish between all the periods of assayer B).
($250-275)