Potosi, Bolivia, cob 1/2 real, Philip II, assayer M (small) below monogram, mintmark P to left, rare, ex-Bir. S-P2; KM-2.2; CT-unl. 1.53 grams. Broad flan with bold legends but weak inner details (net AVF), good full crown and bold M (cruder, non-standard style, evidently made after the official punch was broken or lost). Pedigreed the Mark Bir collection (our Auction #7, lot #1051). ($200-300)