Khalid bin Abdulaziz came to the throne in 1975 following the assassination of his brother Faisal, and his reign coincided with the second major OPEC oil price shock of 1979 — a period when Saudi Arabia was simultaneously flooded with petrodollar revenue and under intense pressure to stabilize regional oil markets. The monetary agency was reorganizing the riyal's subunit coinage during exactly these years, shifting toward a decimal system that had been formally adopted in 1963 but took decades to fully implement in circulating denominations.
The copper-nickel alloy used here replaced earlier silver-bearing compositions, a change driven by bullion economics rather than any policy statement.
Khalid bin Abdulaziz came to the throne in 1975 following the assassination of his brother Faisal, and his reign coincided with the second major OPEC oil price shock of 1979 — a period when Saudi Arabia was simultaneously flooded with petrodollar revenue and under intense pressure to stabilize regional oil markets. The monetary agency was reorganizing the riyal's subunit coinage during exactly these years, shifting toward a decimal system that had been formally adopted in 1963 but took decades to fully implement in circulating denominations.
The copper-nickel alloy used here replaced earlier silver-bearing compositions, a change driven by bullion economics rather than any policy statement.