Watch List notes:

PHILIPPINES. 4 Pesos, 1861. Manila Mint. Isabel II. PCGS EF-40.
Fr-1; KM-144; Basso-70. This wholesome looking survivor exhibits a good strike with even wear and light attractive tone.

Though not notated on the PCGS insert close inspection suggests that the "6" in the date appears to be re-punched over a "5".

Estimate: $300 - $400