25th anniv. of the Conf. of Sofar, Lebanon- 20 fils

This stamp commemorates the activities of the Arab Postal Union (APU), a regional organization established to strengthen cooperation among Arab postal administrations and improve communication services throughout the Arab world. The Union worked to coordinate postal regulations, facilitate the exchange of mail, and promote technical development among member countries.

By the early 1970s, reliable postal services remained essential for government administration, commerce, education, and personal communication. The commemorative issue highlights efforts to modernize postal networks and enhance cooperation between Arab nations, reflecting the growing importance of regional integration and communication infrastructure during a period of rapid economic and social development.