1890-1900s pair of Charity envelopes, one for the aid of needy students in the schools of Kiliya and the other for Foundling shelter for Christian Families, both with 5kon charge, very fine unused (Image)

1918 50s black on rose double print unused, very rare, almost all surviving copies were cut through the right side during the printing process (Mi.€ 2'500). (Image)

1919 Sch on 3H bluish violet, two singles, pair and block of four, showing varieties "no dot after H" (80 possible only), "wide space between stars", also dramatically shifted overprints (Mi.€390 for regular singles).

1919 Western Ukraine Austrian postage due stamp with overprint 15 sch on 36 h, MH, with signature Mikulski on back; Michel 2018, 500 €. (Image)

1919 15sch on 36h, missing "H" in pair with regular stamp with light strike of a double surcharge, very rare if not unique; cert. Mikulski (not mentioned as DD). (Image)

1919 15sch on 36h with triple surcharge (third strike much fainter), fine and rare if not unique; cert. Mikulski (described as DD). (Image)

1919 Western Ukraine overprint on Bosnia portomarken, selection of overprints on the 1 h value (Michel 29), incl block of four MUH (one stamp MH) with signatures Mikulski, and one pair with inverted overprint, hinged with full gum, with certificate Mikulski. (Image)

1919 Western Ukraine, overprint on Bosnia portomarken, ovpt. on 3 h, markedly shifted overprint, not listed in Michel, MNH, with two signatures on back. (Image)

1919 Western Ukraine, overprint on Bosnia portomarken, ovpt. on 4 h, three pairs and one single stamp, cancelled and one MH with shifted overprint, with varieties missing “H”, missing “Y”, missing “Pen”, all signed Mikulski; a very rare selection. (Image)

1919 Western Ukraine, overprint on Bosnia portomarken, ovpt. on 4 h, mint with variety “shahiv” instead of “shahi”, with added Y for the missing letter, pos. 21, signed Mikulski. (Image)

1919 Western Ukraine, overprint on Bosnia portomarken, ovpt. on 4 h, with variety double overprint and missing “H”, MH, with Mikulski certificate; an extremely scarce variety, and possibly the only known. (Image)

1919 Postage due Sch on 6H with overprint strongly shifted (line of overprint is 2-3-1 instead of 1-2-3), mint l.h., extremely rare. (Image)

1919 6ch on 6h surcharge on Bosnia Herzegovina showing dropped stop after 'n' of 'Pen' very lightly hinged, signed (Image)

1919 Western Ukraine, overprint on Bosnia portomarken, ovpt. on 6 h, mint extremely lightly hinged, variety inverted overprint, certificate Mikulski; a very rare stamp. (Image)

1919 Western Ukraine, overprint on Bosnia portomarken, ovpt. on 8 h, selection of two singles and block of six, with varieties missing “H”, missing “Pen”, missing “Y”, no dot after “H”, mostly lightly hinged, signatures Bulat BPP. (Image)

1919 Postage due Sch on 8H with error overprint vertical, just 25 copies possible of which less than 5 recorded; cert. Mikulski (1999). (Image)

1919 Western Ukraine, overprint on Bosnia portomarken, ovpt. on 50 h, missing “H”, pos. 5, MH, with certificate Mikulski, which notes 215 copies produced. (Image)

1919 Western Ukraine, overprint on Bosnia portomarken, ovpt. on 50 h, featuring variety missing “Pen” mint lightly hinged, pos. 17, with Mikulski certificate, which notes 215 examples produced. (Image)

1919 Western Ukraine, overprint on Austria-Hungarian fieldpost 2 h orange, four stamps with overprint varieties, incl. missing “Pen”, missing “Y”, no dot after “H”, shifted overprint, with two Mikulski certs, for missing “Y” in “Ykr” (pos. 21), and missing “Pen” (pos. 17); scarce and very fine. (Image)

1919 2ch on 2h surcharge on Austro Hungarian issue showing strong downwards shift of overprint with bottom line now at top, fresh mint hinged, Mikulski Cert (Image)

1919 Sch on 10(H) red-brown with error missing "Pen", very rare, only 44 copies of this stamp were overprinted, meaning that only two examples of such an error are possible, signed Mikulski (twice) (Mi. €3'600). (Image)

1919 Western Ukraine, overprint on Austria-Hungarian fieldpost 50 h dark-green, six stamps with various overprint varieties, incl. overprint inverted (Michel 53 K), also missing “H”, missing “Pen”, no dot after “H”, a scarce selection of anomalies, with one Mikulski cert. for overprint with “w” missing in “schahiw” (pos. 15). (Image)

1919 2g on 2k overprint varieties, all are inverted and additionally two with damaged 'Y', missing 'pen' and missing 'y', fresh hinged mint, all with signatures, three by Mikulski. (Image)

1919 Western Ukraine overprint on Austria-Hungarian fieldpost 2 kr carmine group with overprint varieties, incl. Michel 57F “griven” instead of “grivni”, “grivne” instead of “griven”, missing H; very rare examples of overprint errors on a single stamp, MLH, signed Mikulski and others on back (XXX). (Image)

1919 50ch on 50h single, strip of three and block six (2 x 3) positions 1,2,6,7,11,12,16,17,18,24 with missing pen, damaged Y, large Y, 'grivni' for 'griven', 'grivei' for 'griven', a fine selection, never hinged, all signed (Image)