Seville, Spain, 4 reales, Ferdinand-Isabel, assayer Gothic D to right of yoke on reverse, denomination o-IIII to right, legend ending in LEGIO, PCGS AU53. Cal-564; Lopez de la Fuente-H5.6. 13.46 grams. Bold full inner details and some legend, light rainbow toning over luster, smallish flan.
Estimate: 200 - 300 USD