This 2 shilling 3 pence stamp was issued by Australia in 1963 to commemorate the completion of the Commonwealth Pacific Cable (COMPAC) — a major undersea telecommunication cable linking Australia, New Zealand, Fiji, and Canada. The design features a stylized red globe connected by a black cable entering the ocean, symbolizing global communication and technological progress.

A key milestone in the modern communications era, the COMPAC cable replaced older radio links and greatly improved reliability and speed of international contact within the Commonwealth.