This 20 Philippine Piso note was introduced by the Central Bank of the Philippines in 1969 ND and signed by Philippine President Ferdinand Marcos and Central Bank Governor Alfonso Calalang. It was demonetized in 28 February 1974. Its obverse side features the Central Bank seal and former President Manuel Luis Quezon, the Father of the Filipino language. Its reverse side features a view of the Malacanang Palace and the Pasig River in Manila. Security features of the note are a segmented solid security thread and a watermark of Manuel L. Quezon. This note was printed by Giesecke & Devrient. It has red, orange, and brown colors and dimensions of 160 mm x 66 mm. This note is in uncirculated condition and TAP Authenticated by Banknote World experts.