Watch List notes:

HEJAZ: al-Husayn b. 'Ali, 1916-1924, AR 20 piastres, Makka al-Mukarrama (Mecca), AH1334 year 9, KM-30, surface hairlines, NGC graded Unc. Probably no hairlines; what appears as such is actually the beginning of deterioration in the dies, not the coin.

Estimate: 400-600 USD