Ottoman Turkey: 1881 (January). Istanbul City Post cover franked with ‘Şehir’ (City) overprinted in black on 20pa of 1877 Dulos stamp for one piastre letter rate tied by bilingual Stamboul datestamp. Reverse 24 January Constantinople * Yeni-Djami (A&P type 1) arrival cds. ex. O. Hornung. Isfila YPO111
