Ottoman Turkey: 1876 (6[19] July). Folded part commercial entire used in Istanbul addressed to Büyükdere franked with 1pi type III Sehir (City) overprinted Dulos stamp tied by superb octagonal BEYOGLU’NDA DÖRT YOL AGZI (A&P type 1) handstamp, oval 7 [20] July Pera transit and on reverse same day oval arrival datestamp. Scarce usage of Istanbul local post.
