Mexico, 1895, 50c purple, in combination with 1895, 15¢ bright blue + 20c brown rose on registered cover to Buenos Aires, Argentina, all tied by 1895 Guanajuanto cds's, Mexico registry etiquette and "A.R." return receipt handstamp; 20c with small scuff and cover with partial backflap, less than 15 covers are known with the 50c issue. Scott No. 253+251+252  Estimate $200 - 300. $0 (Image)