Watch List notes:

Potosi, Bolivia cob 4 reales, Philip II, assayer L (1st period), with P-L over denomination ii to left and ii over P-M to right, rare, ex-Yucatan wreck. S-P3; KM-4.2. 12.09 grams. Choice broad flan with nearly full legends, full and well-detailed shield with bold P-L to left and o-iiii to right (both with clear under-details), full but weaker cross with only light surface porosity, otherwise AVF with patchy toning. From an unidentified ca.-1590 wreck off the Yucatan peninsula of Mexico. (Estimate: $350 - 500)