Watch List notes:

Mexico City, Mexico, cob 1 real, 1610/09F, rare. S-M17; KM-27.2; CT-452. 3.52 grams. Broad flan in nice grade (XF) with flat peripheries except for date, which shows a clear 161/0 with a presumed final digit of 9/0, choice full oMF, well-detailed shield and excellent full cross, attractively toned.

Estimate: $125-200