Bank of Sudan, Ten Pounds (4), January 1970, E/1 731552, signature of A. Mayrgani, January 1974, E/12 prefix, January 1975, E/15 prefix, January 1980, E/95 prefix, signatures of I.A. Nimir (Pick 15a, 15b, 15c) [4]. Good extremely fine to uncirculated £150-200