Watch List notes:

PHILIPPINES: Isabel II, 1833-1868, AE pattern 80 reales, 1859, KM-Pn16, Basso-81a, Paris Mint Essai, bluish background toning, scarce variety with large date, only two BN graded higher in NGC census, NGC graded PF65 BR, S. According to Basso, these patterns were intended for a gold coinage and were struck at the Paris Mint.

Estimate: 1,600-2,000 USD