Seville, Spain, 4 reales, Ferdinand-Isabel, assayer Gothic D to right of yoke on reverse, denomination o-IIII to right, legend ending in CASTELE . LE, NGC AU 50. Cal-560; Lopez de la Fuente-H5.6. 13.57 grams. Very broad flan with choice full legends and inner details but with slight doubling all over (assayer a bit indistinct), low-contrast toning over luster.
Estimate: 500 - 750 USD