Issued by the Soviet Union in 1990, this commemorative set celebrates 150 years since the release of the world’s first adhesive postage stamp — the 1840 British Penny Black. Each stamp features a rendition of the iconic portrait of Queen Victoria alongside symbolic motifs linking postal history and global communication. The 10 kopeck design shows a sailing ship and postal horn, the 20 kopeck highlights the Penny Black within a laurel wreath, and the 35 kopeck depicts a world globe wrapped in a ribbon. This elegant issue honors the universal heritage of philately and the dawn of modern mail.