1978 Soyuz Sojuz 28 Earth Orbit Soviet Space Program SCSP Satellite Pin Badge

Made to celebrate the successful launch of Soyuz 28, it was issued by the Svaz ceskoslovensko-sovetskeho pratelstvi or the Czechoslovak Soviet Union of Friendship and features a very good likeness of the Soyuz 28 space vehicle orbiting the Earth

The badge face is 2.5cm in diameter and has a long, stick pin style fastener on the rear side.

The SČSP was established in 1948 to popularise Soviet science, literature and culture in Czechoslovakia. The SČSP organized book discussions by Soviet writers, tours to the Soviet Union, and Russian language courses. Membership was largely collective, whereupon work places joined on behalf of the workforce.

Membership numbers are recorded as 1,535,600 in 1949, remaining around this level throughout the 1950's and then dropping to 293,673 in 1969 in response to the Soviet armed invasion (Prague Spring - Wikipedia) in 1968.

The SČSP disbanded in 1990 with the collapse of the Soviet Union.