Registered airmail cover from Bamako, Mali, to Lausanne, Switzerland.
2 x 40f tortoise stamps (SG 527) plus 300f airmail 'Future in Space' stamp (SG 532) on reverse.
Clear BAMAKO - R.P. / MAIL 2 - 9 /1977 postmark in blue.
Perforated registered label with BAMAKO.. R.P. stamped in blue.