Pin made in the Soviet Union about Luna 3.
Luna 3 was a Soviet spacecraft launched on the 4th of October 1959 as part of the Luna programm. It was the first ever mission to photograph the far side of the Moon and the third Soviet space probe to be sent to the Moon. It returned rather poor pictures. The historic, never before seen views of the far side of the Moon caused excitement and interest when they were published around the world, and a tentative Atlas of the Far Side of the Moon was created after image processing improved the pictures.