its under Krause Catalog with catalog number KM #204 for the uncirculated and KM#204a for the proof.
composition for both is 26.4g and is 90% silver (0.7639 oz) i believe this has a 38mm diameter. mintage for the uncirculated is 90,000 pcs and the proof has a mintage of 10,000 pcs.
value is somewhere around Php 1,200 (metal value). I would estimate the market price to be anywhere from Php 1,300 - Php 1,400