^Lot 1764 BOLIVIA, Potosí, cob 4 reales, 1652 E, post-transitional (McLean Transitional Type III), 1-PH-6 at t

BOLIVIA, Potosí, cob 4 reales, 1652 E, post-transitional (McLean Transitional Type III), 1-PH-6 at top, retrograde denomination 4, ex-Ponte. S-P37a; KM-18 var; Cal-1113. 5.77 grams. Thin from corrosion yet with much detail including two visible dates plus a partial third date in the legend extending off the flan, full pillars with clear retrograde 4 at top, complete cross with a little doubling and clear mintmark and assayer. Pedigreed to the Luis R. Ponte Collection. Recovered from: Capitana, sunk in 1654 off Chanduy, Ecuador