This is a Saudi Arabia 100 Halala coin, also equivalent to 1 Riyal, from the year 1400 AH (1980 AD).
It features the national emblem of a palm tree above crossed swords.
The coin's composition is copper-nickel.
It was issued during the reign of King Khalid bin Abdulaziz Al Saud.
The weight is approximately 6.5 grams.
Saudi Arabia 50 Halala coin (also known as a 1/2 Riyal).
Country: Saudi Arabia
Year: 1972 (1392 in the Islamic calendar)
Composition: Copper-nickel
Status: The coin has been demonetized and is no longer considered legal tender.
Emblem: Features a palm tree above two crossed swords, symbolizing vitality and prosperity.
