The makers of the Pan American Airway cover and the United Airlines cover are unknown.

The stamped cover and information card relating to Yuri Gagrin and the Russian space program were made by the International Society of Postmasters (also known as the Association Internationale Des Receveurs De La Poste) in the United States of America in 1977. The stamp was issued in the Union of Soviet Socialist Republics (USSR).

The Yuri Gagarin stamp was issued by the Union of Soviet Socialist Republics (USSR) to commemorate Astronautics Day, a day to celebrate the achievements made by the USSR in the exploration of space. Astronautics Day is April 12. It was on this day in 1961 that Yuri Gagarin became the first person to orbit the Earth.

Stamped covers (3), paper, various makers, Australia / United States of America / Union of Soviet Socialist Republics, 1977-1986

Three stamped covers. Cover relating to the last flight by Pan American airways between Australia and the United States of America (USA), cover from the first flight by United Airways in 1986 between Australia and the USA and 1977 Russian cover featuring Yuri Gagarin and the Russian space program.

Stamped cover, featuring Yuri Gagarin and the Russian space program, mounted on mustard coloured information card. The cover has a stamp that portrays Yuri Gagarin, wearing a space helmet, against a background that includes Sputnik I, the Soyuz spacecraft, the Salyut space station and a cosmic station to Venus. The cover is postmarked in black ink with a space shuttle against the outline of a globe and the first day of cancellation date of 12 April 1977. On the left side of the cover is an image in blue and black of the satellite Sputnik I and the Soyuz-Salyut space station. On the reverse of the cover is the name of the maker of the stamped cover and a statement of authenticity from the manufacturer, in English and French. The cover is on a rectangular cardboard mount with a slit to hold the stamped cover. The mount is titled 'USSR' in gold. In the lower quarter of the mount is text describing the stamped cover and its history. On the back of the mount is the same information in French.

Made: International Society of Postmasters; United States of America; 1977

Made: USSR; 1977

Stamped cover and mount relating to Yuri Gagarin, on reverse lower right corner, printed in black '(within rectangular border) (copyright symbol) 77 (F like symbol) (man's head and shoulders)'

Postmark on cover, printed in black 'within circle (space shuttle against outline of globe with star above) / (Russian text around outside of circle) / (two stars between circle and globe) / 12.IV.1977'

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1977