Al Hisn Sharjah Fortress - 100 naye paise

This petrol-blue 100-naye-paise airmail stamp ("بريد جوي") marks a premium tier within the mid-1960s heritage series issued by Sharjah & Dependencies (الشارقة وملكحقاتها), depicting the iconic Sharjah Fortress (حصن الشارقة), also known as Al Hisn. Originally constructed in 1823, the detailed photogravure illustration by Harrison and Sons Ltd. London showcases the double-story coral-stone palace and defensive stronghold, featuring its grand arched gateway, decorative crenellations, and the imposing Al Rujas watchtower structure on the left. The scene shows the traditional Trucial States flag flying above the central pediment, where crossed ceremonial daggers are detailed above the main portal. The layout is completed on the right by the series' signature oval portrait of Sheikh Saqr bin Sultan Al Qasimi (ruler from 1951 to 1965), providing the official sovereign authentication for this high-value denomination used to clear heavy international air packets and registered global mail.