RUSSIA: Levant - Great Britain: 1876 Legal size cover via Odessa to London, franked with combination of Russian Levant stamps 1k brown+5k blue (1872 issue) and Russian Imperial eagle 2x7kop (1875 issue) all cancelled by blue Russian P.O. at Constantinople cds, additional strike alongside with Odessa transit and LONDON*PAID cds. A scarce double rate combination cover, light vertical file fold. (Photo) (Image)