Tenth National Day 1980 (Omani Women's Progress)

This highest-value definitive stamp from the 1980 series celebrates the 10th National Day by honoring social development, institutional inclusivity, and gender equality. The composition features a group of four smiling Omani women dressed in elegant, brightly colored traditional silk tunics (thobe) and sheer head coverings, sitting together beneath the emblem of the Omani Women's Association.

The portrait carries a profound message of social transformation, collective progress, and cultural continuity. By giving prominence to this imagery within the state's official postal and bureaucratic network, the issue highlights a core pillar of Sultan Qaboos's early administrative reforms: the systemic integration of women into public instruction, healthcare networks, and the national workforce as equal contributors to the modern state's contemporary evolution.