1861 10k Postal Stationery Stamped Envelope, Mint, Russian Empire, Russia (SC. 10, Malformed '3' in '3A') (Image)

1861 20k Postal Stationery Stamped Envelope, Mint, Russian Empire, Russia (SC. 11, Variety) (Image)

1861 30k Postal Stationery Stamped Envelope, Mint, Russian Empire, Russia (SC. 12, Variety) (Image)

1849 10k Postal Stationery Stamped Envelope, Russian Empire, Russia (SC ?? #7, 3rd Issue, Cherepovec - Volchansk, MIRRORED Watermark, CV $700) (Image)

1855 1k Postal Stationery Stamped Envelope (SC ?? #8) from Odessa to Vyborg, with rare Odessa pre-adhesive handstamp (Dobin #1.09) and wax seal (Image)

1858 (17 Sep) Cover (front only) from St. Petersburg to Finland, franked with 10k (Scott 8, Zverev 5) tied by round dotted cancel "1", red square postmark alongside (Image)

1860 (27 Apr) Cover from St. Petersburg to Helsinki (Finland, Helsingfors), franked with 10k (Sc. 8, Zv. 5) tied by '1' dotted handstamp in oval, red datestamp and wax seal, Mikulski signature (Image)

1864 (16 May) Cover from St. Petersburg to Sveaborg Fortress (Suomenlinna), franked with 10k (Scott 8, Zv. 5), part of wax seal on back (Image)

1865 (30 Aug) Cover from Vologda to St. Petersburg, franked with 10k (Scott 8, Zv. 5) (Image)

1865 (25 Sep) Cover from Ryzan to Krukovka Railway station, franked with 10k (Scott 8, Zv. 5), wax seal on back (Image)

1869 (16 Apr) Cover from St. Petersburg to Helsinki (Finland, Helsingfors), franked with 10k (Sc. 8, Zv. 5) tied by 'S.P.B.' town post dotted handstamp in oval, red datestamp, wax seal on back (Image)

1869 (1 Apr) Cover from Moscow to St. Petersburg, franked with 10k (Sc. 15) tied by round dotted '2' cancel, sharp Central Post Office and Railway postmarks on back (Image)

1869 (23 Apr) Cover from Saint Petersburg to Amsterdam (Netherlands) franked with 3k, 5k, 10k (Sc. 13, 14, 16 - all 1865 year issue) tied by 'S.P.B.' town post dotted handstamp in oval (Image)

1870 (30 Sep) Cover from Odessa to Genova (Italy), franked with rare 5k black & gray and two 10k (Sc. 22a, 23) tied by Odessa datestamp, other handstamps and postmarks on back (Image)

1870 (4 Jun) Cover from Slobodskoy to Vyatka, franked with 10k (Sc. 23), nicely saved wax seal with Coat of Arms on back (Image)

1871 (27 Dec) Cover from Moscow to St. Peterburg, franked with rare 10k Vertical Watermark (Sc. 23A, Zv. 26) tied by Moscow datestamp (Image)

1871 (13 Oct) Cover from St. Petersburg to Paris (France), franked with 3k, 5k and 20k (Sc. 20, 22, 24), transit postmark and boxed "PD" marking (Image)

1872 (9 Feb) Zemstvo Cover from Nizhny Novgorod to Vyatka, franked with 10k VERTICAL Wm (Sc. 23a), part of Zemstvo stamp on back (Image)

1872 (14 May) Cover from St. Petersburg to Trieste, franked 1k (Sc. 13), 3k and 10k both VERTICAL Wm (Sc. 19c, 23a), Railway pmk, Mail cars, 'Franked' hs to correct blue crayon 10k due marking (Image)

1872 (17 Sep) Cover from Odessa to Genoa (Italy) franked with 20k vertical watermark (Sc. 24a, Rare, CV $1,000+) (Image)

1872 (8 Dec) Cover from Tiflis (Georgia) to Brugge (Switzerland) via Volochynsk franked with 1k, 10k (1866) and 3k (1865), wax seal on the back (Image)

1873 (27 May) Cover from Ostrog to Sens (Yonne, France) franked with pair of 10k (Image)

1874 (7 May) Cover from Moscow to Manchester (England), franked with two 3k and 10k (Sc. 20, 23) tied by Moscow datestamp, 'Zenker & Co' handstamp (Image)

1874 (19 Dec) Cover from Odessa to Marseille (France), franked with two 10k (Sc. 23), "Paid" and PD handstamps, round blue postmark, Mail car "Pochowyj Wagon" and Warsaw postmarks on back (Image)

1875 (23 May) Rare Registered Cover from St. Petersburg to Spassk via Tetyushi and Moscow, franked with 10k (Sc. 23), multiple transit postmarks, beautiful red label seal of "Kavkaz Mercury" society (Image)