1857 10k Brown & Blue unused, just about touched at lower right, otherwise good to large margins, with copy of Ferchenbauer certificate which states that it has original gum and very rare as such (although stamp not signed), very fine, ex "Nikolai". (Image)

1857-58 10k brown and blue, plate II, ample even margins, used with indistinct framed hs, very fine; cert. Roumet (1990). (Image)

1857 10k. brown and blue, showing the very spectacular "dot after '10' of '10 KOP' " variety, showing very decorative and centrally struck "DINABURG" circle hs in red (today Daugavpils in Latvia), small light thin spot at top, otherwise very fine and certainly unique with the combination of this variety and this red postmark, as well as one of the most appealing examples known of this rare prominent plate flaw; signed Scheller; Mi. €3'000 (for the variety only). (Image)

1857 10k brown & blue, outer frameline cut into at top, on 1858 (Jun 23) wrapper from Odessa to Tagenrog with tied by "6" oval of dots cancellation, with despatch boxed ds on reverse, stamp showing variety "sloped serif of 1" at top right, very fine and rare, ex "Nikolai", cert. British Soc. of Russian Philately (1977). (Image)

1858 20k blue and orange on thin paper, used with dotted numeral, watermark variety featuring "2" shifted to the right, top left corner slightly rounded, otherwise very fine; certs. Hovest (2006) and Roumet (2008); Mi. €3'500. (Image)

1858 10k brown and blue, a very fresh example with wide balanced margins all around, tied to cover from Libau to Riga by dotted square "239" hs, with matching "LIBAVA/5 Avgust/1858" three-line ds at left, arrival "Polucheno" hs on back dated 8 August; one of the finest examples of only six covers recorded with this usage (based on the Guido Craveri's handbook of Russia no. 1); cert. J.-F. Brun (2015). (Image)

1864 Perf. 12 1/2 1k, 3k and 5k mint og set of three, very fine, ex "Nikolai" (Mi. 9-11). (Image)

1868-75 Vertically laid paper mint set of 6 from 1k to 30k, 3k with fault at top right, 5k with part gum and thin, the 20k & 30k regummed, a very rare and presentable set, ex "Nikolai". (Image)

1870 10k Brown postal stationery envelope with reverse showing very rare Krasnoe Selo railway mark, sent from St. Petersburg to Borgo (Porvoo), Nylandsk province, Finland, cancelled by Cyrillic "S.P.B" oval hs with transit bs, very fine, one of only a few recorded, ex Fabergé. (Image)

1870 Entire from St. Petersburg to Germany with 1866 3k block of four showing error "V" in background instead of "3", and 1k pair, some cover staining, very rare block with this error on cover. (Image)

1875 2k to 20k complete set mint on horizontally laid paper, with five duplicates, very fresh. (Image)

1906 5r green and blue on vertically laid paper perf.13 1/4 in mint nh complete sheet of 25, couple of small adhesions in the margin corners, very fine and fresh, ex "Nikolai" (Zverev 79, Mi. 61) (Image)

1906 Vertically laid paper 10r red and grey on yellow perf.13 1/4 mint nh complete sheet of 25, small fault in margin at lower right corner, very fine and rare, ex "Nikolai" (Zverev 80, Mi. 62A) (Image)

1909-11 7k Blue Imperial Eagle mint nh imperforate pair, insignificant gum wrinkle, very fine and scarce variety, signed Mikulski, ex Fabergé and "Nikolai". (Image)

1910-19 7R type II (1917 printing) mint nh imperforate left marginal pair without varnish lines, very fine and rare, ex "Nikolai" (Mi. 80DyF3; Zverev 151, U$5500). (Image)

1913 Romanov Tercentenary 3k vignette only die proofs (4), with die A in three states incl. two in carmine on chalk surfaced paper (one with tiny thin) and third in orange (small thins), and die B proof in carmine on buff card, all possibly from the Tsar collection sold by Robson Lowe auction in 1935 – Lot 16 described as “ 3 kopeks, Die A:…. Die proofs of head in carmine, four states” published in the Yamschik-Post Rider 1983, No 12, page 12-13. An exceptional group. (Image)

1913 Romanov Tercentenary 25k photographic essay with engraver markings in red pen which look like they are highlighting changes which were made for the final design (cross above crown, dot under corner ornaments and wider "5"), without the names of designer and engraver beneath the picture, very fine. Exceedingly rare, not mentioned in the Yamschik-Post Rider 1983, No 12 & 13 (Image)

1913 Romanov Tercentenary 3 Ruble proof with partially completed engraving in black on yellowish card, without the names of designer and engraver beneath the picture and showing only the outline of the building. Possibly from the Tsar collection R. Lowe 1935 sale "3 roubles: An extraordinary set of die proofs in various colors showing the different states of the die – state 1, 2, 3 (3), 4, 5 (3), 6, 7 (3) and 8 (5)", published in the Yamschik-Post Rider 1983, No 12, page 15. (Image)

1913 Romanov Tercentenary 5 Rouble, nine complete die proofs in shades of brown and 1 in black, without the names of the designer and engraver beneath, with states 8, 9, 11A, 12, 13, 16, 19A and 19B, all possibly from the Tsar collection published in the Yamschik-Post Rider 1983, No 12, page 15. Mostly very fine and a unique group. (Image)

1913 Romanov Tercentenary 5 Rouble state 4 complete die proofs in 3 different shades of brown on wove paper without the names of the designer and engraver beneath, all possibly from the Tsar collection published in the Yamschik-Post Rider 1983, No 12, page 15. (Image)

1913 Romanov Tercentenary 5 Ruble frame only, state 3 with portrait lightly etched, die proof in dark blue on card, without the names of designer and engraver beneath the picture, very fine. Possibly from the Tsar collection published in the Yamschik-Post Rider 1983, No 12 page 15. (Image)

1903 German 10Pf "China" postcard to Denmark, franked with pair of "KITAI" 2k tied by Tientsin 16.04.03 cds (T&S type 4X, characterised by damaged year numerals), Moscow and Copenhagen cds, slightly soiled. (Image)

1863 (April 2) Cover from Constantinople to St. Petersburg, bearing 1858 10k brown and blue, perf. 12 1/2, vertical pair with each stamp cancelled by pen cross, showing neat blue "KONSTANTINOPOL" cds in blue (Tchilinghirian fig. 9) on the upper back flap which opens well for display, and receiving "Polucheno" cds in black adjacent; one stamp apparently missing at top of the pair, still though a very rare usage of this stamp in this office (Tchilinghirian 'RR', stamps being compulsory from January 1863). (Image)

1865 10pa brown and blue, a magnificent vertical pair from the bottom of the sheet, types 16 / 23, in deep shade displaying excellent margins enabling to see most of the surrounding frame lines, tied to piece by blue cds, a superb exhibition piece; cert. B.P.A. (1964); ex Fabergé and Mehrtens (sold for CHF2'200 in 1996). (Image)

1866 10pa rose and blue with traces of vertical lines, vertical block of 12 (4x3) showing two sheet corners and huge margins on three sides, just touched ta bottom left, unused without gum, four stamps affected by crease, a spectacular multiple. (Image)