Thursday, 15 June 2017

Stamps with Liquid Crystal Gel

Category - Touch
Subcategory - Stamps with Materials affixed - Liquid Crystal Gel

Bhutan 1973 Scouts Souvenir sheet with stamps with liquid crystal gel (LCD)

Issue date 28 December 1973

These stamps was to be issued on 28 December 1973 as per the mail dated 6 December 1973 but due to unknown reasons they were not issued. Some of the stamps made it to dealers before the issue date and were sold before the letter was sent out that the issue was being cancelled. 

These stamps features liquid crystals gel which changes color as per the heat applied to it. But due to some reasons the liquid crystal gel remains black permanently.

Letter taken from the net

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. The pictures of the stamps have been scanned from my collection.

No comments:

Post a Comment