Sudan
Republic gold Proof "Khartoum Meeting" 50 Pounds AH 1398 (1978) PR66 Ultra Cameo NGC, KM79. With hexagon and bell countermarks between dates. From a mintage of 350. AGW 0.5159 oz.
https://coins.ha.com/itm/sudan/sudan-republic-gold-proof-khartoum-meeting-50-pounds-ah-1398-1978-pr66-ultra-cameo-ngc-/a/3088-35153.s?type=CoinArchives3088
HID02906262019
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Estimate: 1000-1200 USD