Ancient Arabic Coin Collection

An Omani coin from the year 1315 AH (50 Riyals) A collection of (11) very old coins, I don't know, honestly, whether they are Jewish or Umayyad; if anyone knows, please let us know, no harm in asking Half Riyal during the era of King Abdulaziz Al Saud, may God have mercy on him, year 1356 AH (40 Riyals) Ottoman coins, 40 Para, year 1327 AH, quantity (10), each piece for (15 Riyals) Yemeni coin, 1 Riyal, year 1985 AD (15 Riyals) Iraqi coin, 1 Dinar (20 Riyals)