Watch List notes:

Foreign Coins and Medals, Saudi Arabia, Abd al-Aziz ibn Sa'ud, proof set comprising silver 1, ½ and ¼ riyal, 1354h (1935) and copper nickel 1, ½ and ¼ ghirsh, 1356h (1937), issued by the Royal Mint, London (KM.18/17/16/21.1/20.1/19.1), the ¼ riyal possibly a specimen strike rather than a proof, all brilliant mint state (6) (5500-6500 GBP)