^Lot 237 BOLIVIA, Potosí, cob 4 reales, Philip II, assayer B (5th period), Grade 1.

BOLIVIA, Potosí, cob 4 reales, Philip II, assayer B (5th period), Grade 1. S-P14; KM-unl; Cal-525. 12.60 grams. Full but slightly off-center and weakly struck cross and shield, the latter with clear P-B to left and full but corroded king's name in legend to right, light gunmetal toning over silvery surfaces. With original Fisher tag and photo-certificate 96A-14452. Recovered from: Atocha, sunk in 1622 west of Key West, Florida