U.S. & Worldwide Stamps & Postal History

1867 single weight folded letter from Rostov to Syros, sent via Odessa and Constantinople by French steamer, franked with 1k, 3k and 30k (unwatermarked), and on arrival with Greece 20L blue, strip of three and single 5L green (1861-67 issue), all with clear
to huge margins all around, applied as postage dues and tied by Syros 26.8.1867 cds, some filing folds through Russian 1k and Greek 20k, otherwise a v.f. and spectacular five color franking Greece/Russia combination, signed Vlastos, with his 1988 certificate
Estimate: $2500