Saturday, 4 April 2015

Stamps with Hidden image

Category - Sight
Subcategory - Stamps with Hidden image

This category of stamps require a polarized viewer to see the hidden image on the stamp. These hidden images are printed as a security feature.

Indonesia 2014 Postal Service with Image Scanner





Images hidden on Stamp seen through an image scanner



Image Scanner


Issue date 26 August 2014

POS Indonesia has issued two stamps to commemorate the Postal Service in Indonesia. These stamps feature 3 hidden image each as a security feature which can only be seen with a polarized image scanner.

On the stamps you find the following hidden image "10" or "20", "NKRI" and the "Garuda" silhouette.

These are anti-forging security features implemented by POS Indonesia.

HongKong Post had issued stamps featuring an image scanner sometime back with the Tangram sheetlet

Disclaimer - Information about the stamp issues on this page has been taken from the net and are for informational purposes only. No copyright claim is made for the above mentioned information/pictures.




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