Watch List notes:

SAUDI ARABIA: 'Abd al-'Aziz b. Sa'ud, 1926-1953, AR riyal, Makka al-Mukarrama (Mecca), AH1367, KM-18, a superb example! PCGS graded MS65. Actually struck at both the Birmingham and the Mexico City mints without mintmarks.

Estimate: 50-75 USD