25 Rials - Qaboos WWF, Masked Booby

Issued as part of Oman's contribution to the WWF's 25th anniversary series in 1987, this piece is one of a coordinated set of gold issues commissioned by member nations to fund wildlife conservation. The Masked Booby — a seabird breeding on Oman's offshore islands, particularly the Daymaniyat archipelago — was a deliberately local choice, tying the coin's purpose directly to a species with documented Omani habitat rather than a purely symbolic selection.

Mintages across the WWF anniversary gold series were uniformly small, and Oman's issues attract a narrower collector base than more widely traded Gulf coinage, which keeps secondary market pricing somewhat inconsistent.