^Lot 138 MEXICO, Mexico City, cob 8 reales, Philip IV, assayer D.

MEXICO, Mexico City, cob 8 reales, Philip IV, assayer D. S-M18a; KM-45; Cal-Type 319. 26.57 grams. Broad, corrosion-free flan with much peripheral flatness but bold assayer D and full shield and cross, deeply toned in crevices, impressively solid overall. With original certificate from Captain Tracy Bowden through his contract with the Dominican Republic. Recovered from: Concepción, sunk in 1641 off Hispaniola