Landing module on Mars (Guinea-Bissau 1977)

27 January (Guinea-Bissau ) within release Mission 'Viking' goes into circulation Stamp Landing module on Mars face value 35 Guinea-Bissau peso

Stamp Landing module on Mars in catalogues
Michel:	Mi:GW 421A

Stamp is square format.

Also in the issue Mission 'Viking':

• Stamp - Viking in orbiter face value 25;
• Stamp - Landing module on Mars face value 35;
• Souvenir Sheet - Viking in orbiter face value 25;
• Souvenir Sheet - Landing module on Mars face value 35;