Security Feature: Perfect See-Through Register

Some of our Philippine banknotes have a perfect see-through register feature. A good example would be the 2000 bill.

On the banknote's front side, near the upper-left corner, one would find the seemingly abstract shapes:
Similar symbols appear on the reverse of the note near the upper-right corner.

So what do these strange symbols stand for? Actually, nothing! That is until we hold the note up to the light and see them together form the letters "BSP" which is the acronym for Bangko Sentral ng Pilipinas.


The prints at the back and front of the banknote are printed such that they "register" "perfect"ly with one another. They are printed exactly over one another to create a complete image when held up to the light. This is the perfect see-through register security feature. Ordinary printing methods will find it hard to be able to achieve the same accuracy in printing.

A perfect see-through register may also be found on the 200 peso banknote. The 200 outline in front and the blue 200 at the back meet in one zero to form another perfect see-through register. However, for this particular note I have photographed and many other 200 peso bills, the register is not that "prefect" at all.


Check out the 50 peso bill. It has a more "perfect" see-through register in one of its zeros.

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