Vostok 1961 Soviet Russian Commemorative Brass and Enamel badge with a screw at the back to fix it to a hat or jacket.
Diameter 3.5 centimeters, weight 16 grams.
The Vostok (translated as East) was a type of spacecraft built by the Soviet Union.
The first human space-flight in history was accomplished on this spacecraft on April 12, 1961, by Soviet cosmonaut Yuri Gagarin.