^Lot 711 BOLIVIA, Potosí, cob 4 reales, Philip II, assayer L (1st period) below mintmark P to left, ex-Bir.

BOLIVIA, Potosí, cob 4 reales, Philip II, assayer L (1st period) below mintmark P to left, ex-Bir. S-P3; KM-4.2; Cal-522. 13.26 grams. Well toned over slight surface porosity, choice strike with AU details in the sharp full shield and cross, bold P-L, a lovely coin despite the minor surface damage. Pedigreed to the Mark Bir Collection (Sedwick Auction 6, with original lot-tag 895 and Mark Bir tag).