Issued by the Soviet Union (USSR) in 1990, this 15-kopeck stamp pair honors two prominent Russian Nobel Prize–winning authors: Boris Pasternak (1890–1960) and Mikhail Sholokhov (1905–1984). Each stamp features finely engraved portrait artwork accompanied by small thematic illustrations symbolizing literary contribution and Soviet cultural life. The issue celebrates their global literary recognition—Pasternak awarded the Nobel Prize in 1958 and Sholokhov in 1965. As a late-Soviet commemorative literary issue, the pair holds strong thematic value for collectors specializing in literature, Nobel Prize winners, and Soviet cultural history. Well-preserved matching pairs are particularly desirable in topical collections.