Odd stamps : 05 c Stamps in braille

In 1974, Brazil already issued a sheet with Braille inscription.
The sheet isn't very colourful, and maybe not the highlight of my collection, but the fact that this is one of the first sheets printed with braille on, it's surely is an interesting sheet.

detail of the sheet, stamp of Brazil with braille

The sheet was issued for the fifth general assembly for the blind's welfare
On the sheet, under the stamp, an additional text is aded:
freely translated it means: "a blind man becomes a participating citizen"

full sheet - Brazil 1974

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