Obverse
Portrait of Lapu-Lapu, the first Filipino to resist Spanish domination in the Battle of Mactan, in which Ferdinand Magellan, Leader of the Spanish expedition was killed on "Republika ng Pilipinas" "Lapulapu"
Reverse
Image of a sea shell (Voluta imperialis), one of the species indigenous to the Philippines "1 Sentimo" "Voluta Imperialis"
Note
“Pi” in Baybayin Script used to be referred to as "Issuer's Mark" in the 80's by the CBP in their documentation. After that, in the 90's BSP started to refer to it as "Mintmark" in their documentation
Remarks
After this coin was considered demonetized pursuant to BSP Circular No. 81 dated