Important British and World Paper Money

Mexico, El Banco de Sonora, Five Pesos, 2 January 1911, no. 271664; Ten Pesos, 24 November 1909, no. 98600; Twenty Pesos and Fifty Pesos, both unissued (Pick S419c, 420b, 4221d, 422d) [4]. Issued notes fine, others uncirculated
£80-100