1849 Stamped Envelope (Ilyushin 7), MIRRORED Watermark Type 1. Cover from Arensburg to St. Petersburg (Image)

1857 Russia Number One 10k (Sc. 1) brown & blue, cover from Fellini to Riga, dotted cancellation '395', RARE! (Image)

1858 10k (Sc. 2), Cover from Dorpat to Keriele, dotted and numeral cancellation '393'. (Image)

1860 10k (Sc. 8) Cover from Mitava to Riga, Postmarks of 1860 Sample (Image)

1863 Stamped Envelope, size 137x85 mm (Il. #15), Watermark III, Cover Opening IV, Signed but not sent (Image)

1848-1868 Stamped Envelope of the St. Petersburg Post, Second issue, Perfect condition (Image)

1868 Imperial Stamped Envelope 30k (+1) Second issue, Il. #22, 145 x 80 mm (Image)

1869 City Post Stamped Envelope 5k (+1), Il. #1, 140 x 180 mm (Image)

1867 1k, 3k, 10k Cover from St. Petersburg to Berlin (Germany) (Image)

1871 1k, 3k (SHIFTED Background), 10k (Sc. 20, 22, 23) International cover from the Nikolaevsky railway station in Moscow to France (Image)

1872 1k, 3k (Background Error 'V'), 10k International cover from Riga to Holland (Certificate, CV $550) (Image)

1872 20k VERTICALLY Laid Watermark (Sc. 20c) International cover from Odessa to London (CV $1,000) (Image)

1874 1k, 3k, 10k Cover from St. Petersburg to Zurich (Switzerland) (Image)

1875 10k ?over from Vilna to Liepaja (Libava), a transit postmark of postal car Minsk-Libava (Image)

1876 Cover from St. Petersburg to Finland. Postmark of the 6th Department and expedition of the St. Petersburg post office, Sc. 28 (Image)

1883 International cover from St. Petersburg to Copenhagen, Denmark, Sc. 27 (Image)

1904 Kiev Local Registered Cover (10k INVERTED Background) (Image)

1908 International registered cover from Narva to London, Great Britain (10k Pair INVERTED Background) (Image)