1885 (March 1), 10pa black & green, perforated 13.5, and 10pa green & light green, perforated 11.5, each tied to postal card to Guadalajara, Mexico, by circular grid cancels, neatly-struck Poste Yambol c.d.s. despatch, Constantinople-Galata (Mar 17) and New York F-D (Mar 30) transit datestamps on front and further Istanbul transits on reverse, some small edge faults, but a rare 1881/84 mixed issue franking to an exotic destination.
