1000 Piso Seal type 5, With security thread

The 2007 dating is scarce enough to trade at a meaningful premium over adjacent years — limited printing runs during signature transition periods are a recurring feature of BSP high-denomination issues, and collectors have learned to check dates carefully on this series. The abacá fiber content is a deliberate nod to a Philippine export crop with centuries of use in specialty papers, though by this period the blend was primarily a security measure rather than a cost decision.

The [2009*] bracket in the signature data reflects a listed combination that has never been confirmed in a verified example — Aquino III assumed office in mid-2010, making a 2009-dated note with his signature a technical impossibility.