Yemen. Gold Riyal (5 Lira -4 Sovereigns), AH1377 (1957/1958). Fr-8; KM-Y#G17.2. Weight 0.9400 ounce. al-Nasir Ahmad bin Yahya (Imam Ahmad), 1948-1962. NGC called a gold Off-Metal Strike. Fully lustrous, with some striking softness on both sides. A very rare issue. NGC graded AU-58. Estimate Value $4,000 - 4,500