filipino british passport holder

[fred]

So

I don't speak of an old expired passport but of his valid Filipino passport.

Sorry..I meant passports valid at the time New brit PP issued..
As Golilocks has illustrated..They just send them back to the owner.
Although this still valid PP should not be used for travel it is advisable to take it along as proof of being a natural born Filipino..In order to recieve a Balikbayan stamp in the Brit PP.