Issued by the Mutawakkilite Kingdom of Yemen in 1949, this commemorative stamp celebrates the 75th anniversary of the Universal Postal Union (1874–1949). The design prominently features a portrait of a Yemeni leader at center, symbolizing national authority and modernization during the period. Flanking illustrations of a mounted rider and an aircraft reflect the transition from traditional to modern communication methods. Printed in striking red and green tones, the stamp represents Yemen’s participation in the global postal network and remains a notable early commemorative issue sought by Middle Eastern collectors.