1919, general issue, 1K, 2K and 2M, all with double impeessions, ungummed as issued, signed Petriuk PZF, fine (Fisher 80, 82, 94DpA)

1945, Surcharge 1,50 zt. on 25 gr. carmine, horizontal strip of 3 with left sheet margin, the first 2 stamps in type I the third in type II, unmounted mint, very fine, signed Schmutz; fine and rare

1946, BIE souvenir sheet, used, vf, signed Falkowski

1950, Groszy-Overprints: Culture souvenir sheet with handstamp "GROSZY" in type 9, unmounted mint, very fine, signed Falkowski

Culture souvenir sheet with handstamp "GROSZY" in type 21, lightly cancelled "SZCZECIN 23 11 50", very fine, signed Falkowski

1918/90, mint never hinged, unused and used stock with better issues in 7 stockbooks.

1920/2019, mainly mint collection in two binders with main value in 1982/2019 apparently complete MNH.

1928/57, unmounted mint/unused selection of souvenir sheets and sheetlet (6), fine to very fine

1950, "GROSZY" overprints, unmounted mint collection, without souvenir sheets, but with stamps from culture souvenir sheet and postage due, better values signed Falkowski

1860/1939, exquisite collection of over 70 covers, neatly housed in one album, many notable items like Mi.-Nr. 1 tied by both concentric circles "1" VARSAW and red cds. "VARSAW 29-1" to folded entire to St Petersburg (certificate Mikulski), 21 and 25I + Austro-Hungarian Field Post 54A on registered cover from Slawkow Polski to Bedzin (sign. Wiatrowski and certificate Berbeka), better cancellations like "STATION OZORKOV", etc.; mostly very fine, an appealing specialist assembly

1904/1939 (ca.), interesting group of over 35 covers and cards, ecclectic range of frankings and types of mail, incl. 1916 Austro-Hungarian Fieldpost incoming mail to Warsaw, fine to very fine

1925/1936 Postal history accummulation of over ninety covers, includes inflation period in 1920, an original correspondence, many interesting frankings and postmarks, in good to fine order. 

1919, 25h. on 50h. horizontal pair tied by cds. "DZIEDZICE 19.1.19" to registered cover to Vienna, cover some imperfections and missing flap, otherwise fine, rare commercial cover, signed Petriuk with certificate (2023) and certificate Mikulski (2009)

1919, 15 and 20h. and postage due 5 and 10h. as delivery fee, tied by cds. "SKALAT -9.XI.19". to cover incoming from Montreal, cover shortened with some opening faults, otherwise fine and very rare, signed Rachmanow and Petriuk with certificate (2023)

Germania 15, 30, 40 and 60 pfg., the first overprint annulled by ink strokes with local "Poczta Polska" above, 30 pfg. without gum and damged, the others unused, very rare, certificates Mikulski (2009) and Petriuk (2023)

Germania 60 Pfg. with clear double print from position 2 of the overprint form of 10, unused, the only known piece of this distinctive variety, certificates Mikulski (2009) and Petriuk (2023)

Germania 30 pfg., former horizontal strip of ten showing the complete setting, seperated between the 5th and 6th stamp, mint never hinged, few light perf seperations, otherwise very fine and rare, signed Mikulksi with certificate (2009) and certificate Petriuk (2023)

Germania 30 pfg. with additional franking tied by cds. "OSTROW -4.12.18" to registered cover, presumably first posted in the town of Lomza, with corresponding handwritten note in the provisional R label, the stamps in good condition, the cover with some flaws, commercial mail is enormously rare, sign. Petriuk with photo-certificate (2023) and photo-certificate Mikulski (2009)

1918, 3 h. blue, tied by circular seal "ZARKI KROL POLSKIE", with additional Austrian K.K Feldpost 2 h. and 8 h. tied by cds. "ETAPPENPOSTAMT DABROWA -9.X.18" to card to Zarki, alongside cds. "KuK ETAPPENPOSTAMT 11.X.18 * ZARKI *", very light toning, very fine and rare, sign. Petriuk

1918, 6 h. greyish blue, horizontal pair, Type 2 + 1, with additional handstamp from the 10 h. applied by mistake, fresh colours, mint never hinged, extremely fine. A very rare multiple of that error, sign. Mikulski and certificate Jungjohann BPP (2003)

1918, 6 h.- 24 h., complete set in blocks of four, fresh colours, mint never hinged, one 6 h. with two minor adhesion spots on reverse, each block folded horizontally in margins between the stamps, extremely fine and very scarce, all sign. Ryblewski 

1918, unused and used collection in one stockbook, complete in the main Michel cat. numbers, highly specialized with types, shades, multiples, better items like Mi.-Nr. 4 F (sign. Petriuk), together with some reference forgeries, mostly very fine and fresh, an unusual specialist assembly, many sign. Petriuk, Korszen, Mikulski

FIELD POST OFFICE "POCZTA POLOWA N°14": Illustrated card with two-line "DOWODZTWO III. baonu 12. pioku piechoty", endorsed "poczta polowa 14" at top, adjacent cds. "FRONTOWA POCZTA POLOWA N°214 11 I 20"; fine and scarce

FIELD POST OFFICE "POCZTA POLOWA N°20": Illustrated postcard to Lublin with fair strike of cds. "FRONTOWA POCZTA POLOWA N°20 9-IX 19"; some slight staining at the corners, still fine and scarce

FIELD POST OFFICE "POCZTA POLOWA N°23": Illustrated postcard with large official lilac handstamp from Riflemen Corp., adjacent cds. "FRONTOWA POCZTA POLOWA N°23 26 V 1919"; some slight aging, still fine, scarce