On December, 1834 Queen Isabel II of Spain ascended to throne after the death of her father, King Ferdinand VII. The countermarking of Philippne coins was changed from "F.7.o" to "Y.II". on 8 Reales.
Countermarking of coins during the Spanish era was done on coins made by the insurgent countries of South Americas which were reaching the shores of Philippines. For the coins to be accepted, countermarking was applied.
Up until December 1835 the countermarking of minor coins was approved but ceased in 1837. During this very short period of countermarking minor coins, it is estimated that only about 12 pieces survived; however unverified if all are genuine.
This is the only known Y.II. on 1832ZS OM 1 real specimen graded by the Numismatic Guarantee Corporation (NGC).
(Ref. Yap-Bantugan, “Resellos Filipinos” Counterstamped and Countermarked coins of the Philippines)