Mexico City, Mexico, cob 4 reales, Philip II, assayer O below denomination IIII to right, mintmark oM to left. S-M11; KM-36; CT-336. 12.63 grams. Typically broad, round flan with nearly full legends and crown and fine details, a couple weak spots (especially in centers), toned AU with light surface pitting.
Estimate: $125-200