[1] - Diagonal Red Specimen and De La Rue oval overprints
[2] - 1st Issue (Detailed Seal). BSP Seal Type 2 Printed by Thomas de la Rue and Company Limited London
[3] - On , The Security Printing Plant (during its soft opening) commenced printing the 2nd Issue (Simplified Seal) with BSP Seal Type 4
[4] - Part of 1979 The Franklin Mint Specimen Banknotes From Around the World
[5] - Red Title under signature
[6] - Brown Title under Signature
[7] - Unissued 100 Piso Pilipino Series banknote were sent back to the printer for overprinting, resulting to existence of Dark Color and Light Color of Overprint, and can be found with overprint shifted, half printed and sometimes completely missing overprint.
[8] - Diagonal Red Specimen Obverse and Reverse
[9] - Between the plate letters SM - UM are excess printed notes with signature of Governor Jaime C. Laya were eventually numbered serially for insertion in the Governor Jose B. Fernandez, Jr. block with 1,000,000 serial numbers of no records available
Portrait of Sergio Osmeña "Ang salaping papel na ito ay isang bayarin ng Bangko Sentral at lubos na pinananagutan ng pamahalaan ng Republika ng Pilipinas" "Ang papel na ito ay salaping umiiral sa Pilipinas at pambayad sa lahat ng uri ng pagkakautang" "Limampung Piso"
Reverse
Image of Legislative Building "Limampung Piso" "Gusaling Batasan"
Security Features
Portrait watermark that can be seen when viewed against the light. Broken security thread arranged in a vertical line. Red and blue visible fibers all over the note and invisible fluorescent printing
Remarks
After , this banknote was considered demonetized pursuant to
CBP Circular No. 1326 dated