Pope John Paul VI Pastoral Visit

I picked up these neat little cards which commemorate Pope John Paul VI visit to the Philippines in November 1970. The cards feature mint, unused stamps with no cancelation marks. The stamps are Scott #’s PH 1080, 1081, C99 from 1970 and were released by PhilPost on 27th November 1970 to coincide with the popes visit.

While the stamps we issued by PhilPost I do not believe these souvenir cards were. There is nothing printed on the back of the items and no other markings that indicate who produced them.

I would appreciate you adding a comment with details if you know anything about these items.