1857, 10k brown and blue, imperforated single with numeral watermark ''1'', enlarged margins, cancelled on a piece by Riga circular pre-philatelic marking ''Apr. 1858'', VF and an eye-catching item, SC #1 (Image)

1857, 10k brown and blue, imperforated single with nice margins at sides and clear at the top and bottom, numeral watermark ''1'', a part of Tauroggen ''June 1858'' pre- philatelic cancellation, mostly VF (Image)

1857, 10k brown and blue, imperforated single with balanced margins at three sides and short at bottom right, broken serif at left of ''1'' on ''10'' under oval inscription, cancelled by ''9'' inside oval dotted cancellation (Tauroggen), fresh and rare variety of Number 1 (Image)

1858, trial color proof of 20k in green and violet, perforation 14½x15, printed on paper without watermark, tiny thin at right mostly on margin, still fresh condition, no gum, VF appearance (Image)

1858, 30k rose and green, perforation 14½x15, printed on thin paper with watermark numeral ''3'', postal cancellation ''Vilno Train Station 15.Mar.1869'', slight facial scratch at left, fresh quality otherwise, VF appearance (Image)

1864, 1k, 3k and 5k, complete set of three with perforation 12½, fresh colors and intact perforation, full or large part of OG (5k has small translucent spot), VF, SC #8-10 (Image)

1864, 1k black and yellow, perforation 12½, nicely centered with intact perforation, full OG, hinged, VF, SC #8 (Image)

1863, City Post, 5k black and blue, top right corner sheet margin block of four, post office fresh quality, full OG, NH, VF, SC #CT2 (Image)

1865, 20k blue and orange, perforation 14½x15, printed on paper without watermark, nice and fresh colors, intact perforation, the ''key'' value of the set, full original, but uneven gum, showing natural flows, VF, expertized by H. Bloch, SC #15 (Image)

1866, 1k-30k, complete set of six, printed on horizontally laid paper, four stamps with sheet margins (all are NH), in addition color shades of 3k and 5k (both are VLH), full OG, VF, SC #17-22, var (Image)

1868, 1k black and yellow, printed on vertically laid paper, full OG, NH, VF and scarce never hinged, SC #23 (Image)

1870, 3k black and green, printed on horizontally laid paper, ''V'' error of background, tiny soiling at top corner perforation tips, mentioned for accuracy only, nice and fresh, full OG, NH, VF, SC #18 I, not priced never hinged (Image)

1866, 5k black and gray, error of color, printed on horizontally laid paper, stunning quality single, full OG, very light trace of hinge, VF, SC #19a (Image)

1866, 5k blue black and pale lilac, color variety printed on horizontally laid paper, nice and very fresh, full OG, LH, VF and very scarce, SC #19b (Image)

1866, 10k brown and blue printed on horizontally laid paper, ''Kalach'' variety at the top left value tablet, neat postal cancellation, minor top right corner imperfection, nevertheless fresh and F/VF, SC #20 Kb (Image)

1868, 10k brown and blue, printed on vertically laid paper, choice single with intact perforation, full OG, VLH, VF, SC #26 (Image)

1866, perforated (14½x15) proof of 10k in brown and blue, printed on thick chalk-surfaced paper without watermark, bright colors and excellent embossing, no gum as produced, VF and very rare, especially in such quality, this proof had been issued for the Paris Exposition of 1867, according to enclosed Cherrystone Stamp Center certificate only one pane of 25 had been printed, ex-Breitfuss, Faberge (Image)

1866, 30k rose and green, printed on horizontally laid paper, broken frame line at the top and rounded top right corner of groundwork varieties, full OG, VLH, VF (Image)

1875-79, 2k-20k, complete set of five, all are bottom or corner margin singles printed on horizontally laid paper, post office fresh quality, full OG, NH, VF, SC #29-32, 33 (Image)

1875-79, 2k-20k, complete set of five, in addition stamp of 7k in pale gray shade variety, all printed on horizontally laid paper, full OG, NH or VLH (10k and 20k), VF, SC #29 -32, 33, b (Image)

1875, 2k black and red, printed on horizontally laid paper, partially omitted outer frame on the left, with additional break in circle of the right value tablet, full OG, previously hinged, VF and rare plate error (Image)

1868-79, 3k, 5k and 30k; 2k, 7k and 8k, set of six printed on vertically laid paper, each stamp is postally used, no defects, fresh quality, mostly VF, SC #18/33 I (Image)

1875, 10k brown and blue, horizontal pair printed on horizontally laid paper, both stamps with center offset on reverse, full OG, VLH, VF (Image)

1884-88, 1k-70k, complete set of eight, in addition color shade varieties of 2k x2 and 3k x2, nice quality unit, full OG, NH (3k pale red is LH), VF (Image)

1884, 3.50r black and gray, 7r black and yellow, complete set of two printed on vertically laid paper, nicely centered and unusually fresh condition, full OG, VLH, VF, SC #42-43 (Image)