SUDAN. 25 Pounds, AH 1398 (1978). NGC PROOF-67 Ultra Cameo.
Fr-4; KM-78. Mintage: 350. AGW: 0.2432 oz. Variety with countermarks of "B23" in hexagon and bell between dates. Struck to commemorate the Khartoum Meeting of O.A.U. Superbly cameoed with bright yellow-golden surfaces.
Estimate: $500 - $700