It looks like a small sheet of stamps. Minisheets Fire Transport SERIES. These stamps were used for correspondence from . This stamp cataloged
Michel numbered 1658-1661 Klb. On postage miniatures Minisheets Fire Transport SERIES depicted Ukrainian aircraft, which are exported to many countries.
Theme: automobiles, cars, trucks, aircraft, helicopter, airplane, airship, sailplane, aeronautics, flight, pilot, ships, navy, sailing, boat, sea, shipbuilding