1791-1872 collection of 105 folded letters written up exhibition style on pages, with an excellent variety of Moscow and St. Petersburg postmarks in red or in black, also Odessa, Berdichev, Riga, Kharkov, Warszawa and many others, variety of border-entry strikes and tax markings, also "Aus Russland" to Geneva, Paris, Bordeaux, Berlin, London, etc., mostly fine-v.f. An appealing collection (Image)

Est.US$7,500

1880-1900 small study of Registered Letters and wax-seals used, selection of seven covers with some descriptions, one prepaid from Russayanovgrad to Stekelenburg, showing five intact wax seals on back, others include 1880 small cover with 14k franking, registered from Rovno to Rome, Italy, five wax seals on back, 1904 registered cover from Lokachi, paying 34k to Vladimir, two wax seals, 1899 registered cover paying 20k from Tiflis to France, etc., mixed condition, interesting group (Image)

Est.US$500

1914-17 Military Aviation, collection of 21 cards written-up exhibition style on pages, showing a variety of Military Aviation cachets, variety of different detachments, schools for Department of Aviation Fleet, Military School for Pilots, Repair shops, Aeronautical Parks, etc., mixed condition, mostly fine or better. A fascinating look into the early military aviation in Imperial Russia (Image)

Est.US$2,500

1920s-30s selection of 34 covers or cards, mostly with Air Post franking, some better, few interesting items, mostly fine (Image)

Est.US$1,000