Odd stamps : 05 f Stamps in braille

For my 600th post, a special stamp.

This stamp, issued by the Sultanate of Oman, has issued a braille stamp in 2004.
The stamp has an embossed text in braille all over the stamp, but surely as special as the embossed printing, is the size of the stamp.

The sheetlet is 10.4 by 11.8 cm, and has a stamp of 8 by 9 cm (72 cm²)

White cane day 2004

This sheetlet was issued at the occasion of the white cane day (October 15). This is the international day for the awareness towards the blind and visually impaired people.

This day is been 'celebrated' since 1964. The special sheet issued by the Sultanate of Oman, is at the occasion of the 50th anniversary of this day.

Different to other braille stamps, the text in braille is only tangible on the front side of the stamp.
The elevated printing is the result of a thermographic proces, and not by embossed printing.
As a result, we see a shiny, raised effect, with yellowish dots.

thermograpich printing of the Braille text

Although the Sultanate of Oman is not collected by many people, this stamp is surely an nice addition to your collection of 'special' issues.

to be continued ...