1 Riyal - Fahd bin Abdulaziz

The P#21 series was the first Saudi issue to carry the portrait of King Fahd, who had acceded to the throne in June 1982 following King Khalid's death. SAMA moved quickly to update the currency, and De La Rue delivered a redesigned series within roughly two years — a reasonable production turnaround for a full denomination set requiring new intaglio plates.

The 1 Riyal denomination was the workhorse of everyday retail transactions throughout the Kingdom during the 1980s oil-era boom, and high-volume circulation has left genuinely uncirculated survivors harder to find than the larger denominations from the same series.