2 1/2 Rials Save the Children Fund

Oman's Save the Children Fund coinage from 1991 was part of a broader series of Omani commemoratives issued under the Central Bank during the reign of Sultan Qaboos, whose government made child welfare programming a visible plank of domestic policy following the country's rapid oil-driven modernization in the 1970s and 80s. The timing also aligns with the lead-up to the UN Convention on the Rights of the Child coming into force globally, which prompted numerous national mints to produce related issues.

The .925 silver specification and 28.28g weight place this squarely in the Crown-sized commemorative format that dominated the international collector market in this period — a deliberate choice to maximize appeal to overseas buyers rather than domestic circulation.