Watch List notes:

Mexico City, Mexico, cob 4 reales, Philip V, assayer not visible (ca. 1730). KM-40a. 13.31 grams. Partial but definite shield and cross, bit of final digit showing (possibly an 0), minor surface corrosion, black tone all over. With photo-certificate. Recovered from: Rooswijk, sunk in 1739 southeast of England

Estimate: $100-150