Issued by the Soviet Union in 1975, this 6-kopeck stamp honors Alexander Fedorovich Mozhaysky (1825–1890), a Russian naval officer and aviation pioneer. The design features his portrait alongside an artistic rendering of his experimental aircraft — one of the earliest powered flight designs in history. The Cyrillic inscription translates to “Creator of the first airplane in the world.” This issue celebrates Mozhaysky’s visionary contributions to aviation decades before the Wright brothers, underscoring the USSR’s pride in early Russian technological innovation.