Saudi Arabia | 10 Halala, 1977 (1397) | 21 mm, 4 gr. | Copper-nickel | Obverse: National Coat of Arms | Lettering: خالد بن عبد العزيز السعود (Khalid bin Aziz Al-Saud ), ملك المملكة العربية السعودية (King of the Kingdom of Saudi Arabia) | Reverse: Piastre written in centre, Denomination written above, left Latin numerals, right Arabic numerals, Arabic dating below | Lettering: ١٣٩٧ ١٠ قرش 10 عشر هللات |