To complete the Filipinization of Philippine currency, the Central Bank started to issue the series of multi-colored Central Bank notes worded in Pilipino and similarly bearing the portraits of Filipino heroes on the reverse, and vignettes in Philippine history on the reverse toward mid-1969. This series called Pilipino series came in denominations 1, 5, 10, 20, 50 and 100. The first five notes have been widely circulated while the issuance of the 100-piso bills was limited. Together with the English Series, this Pilipino Series was considered demonetized after February 28, 1974 pursuant to PD 378.
reference from and images by bsp.gov.ph