Like B1097a, but new date (2023) and with tactile lines left/right front.
Oddly, printed tactile lines were present on preceding issues with old bank seal, but notes with new seal lack the printed tactile lines, with the exception of this 50-peso note dated 2023. A 500-peso note also dated 2023 has been observed with blind-embossed tactile lines. It’s unclear if these are errors or intentional varieties.
Courtesy of Sejin Ahn (http://www.facebook.com/myriakorea).