El Banco de Espana, printers archival specimen 50 Pesetas, 17 May 1927, serial number run 0,000,001 to 10,000,000 on reverse, slate-violet, purple and red, portrait of King Alfonso XIII at left, reverse blue, "Fundacion de Buenos Aires" by Don Juan de Garay, perforated CANCELLED (Pick 72s), ink date 14. 6. 29 and annotations in top margin, otherwise about uncirculated to uncirculated, rare