Russia 4670-4672

$ 1.10

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Russia 4670-4672, MNH, $1.45. Michel 4735-4747. Intercosmos 1978. Soviet-Polish cooperative space program. Crystal, Research ship Cosmonaut Komarov, Salyut 5, Soyuz 29, 30. Block of 4 - buy 4 stamps (6), Block of 10 - buy 9 sets (2).