Ottoman Turkey: 1878 (20 February). Cover to London, England franked with 1 ¼pres on 50pa of 1876 Dulos stamps for fifty paras single weight international letter rate according to UPU regulations tied by P.I.O (Poste Imperiale Ottomane, A&P type 42) oval dumb handstamp alongside Constantinople & Turquie datestamp. Reverse 28 Fevruary arrival cds in red. Isfila 93
