1971, 21 March. Battle against discrimination. No’s 773-776

Design: Oscar Bonnevalle (1920-1993)

Printer: Hélio Courvoisier, s.a., La Chaux De Fonds (Switzerland)

Paper with silk threads

Perforation: 11,5

Sheet: 50

Circulation: 250,000

 

No.773 1K, green

No.774 4K, gray

No.775 5K, pink

No.776 10K, blue

The series:

 

The imperforated series is in size and coloring exact the same as above:

 

There are no variations or curiosities known for none of the above shown material.