Watch List notes:

Santo Domingo, Dominican Republic, copper 4 maravedis, Philip II, assayer X, very rare. S-SD2; KM-52; CT-846. 5.23 grams. Fine details but encrusted all over, the lion and castle still full (variety with even-height turrets and rectangular windows in castle and tressure dimples at 1-3-5-7-9-11 o'clock), some legend, large edge-split.

Estimate: $350