Koprowski, Samuel: Les Timbres-Poste Ruraux de Russie (publ. by J.-B. Moens Brussel 1875), XXIII + 108 pages, private hardcover, content good without major faults, ex libris E. A. Bellamy, ex libris Albert Kronenberg. This is the first handbook about Russian philately and one of the earliest stamp handbooks in general, extremely rare. Only a few examples are known. Estimate: 800 Euro
