1776 entire FL (with contents) addressed to Riga, with a rare handstamped framed MITAU departure, endorsed "Pilno" (Express), fine usage from Mitawa (present-day Jelgawa in Latvia) (Mitau became a town of the Duchy of Courland in 1561 and became the capital of the united duchies of Courland and Semigallia. Because the duchy became a vassal of the Polish-Lithuanian Commonwealth, Mitau was also referred to by the Polish name Mitawa) (Image)

Est.$500

1789 entire FL addressed to Reval (present-day Tallinn), with an excellent strike of MITAU, crown at top and Posthorns at bottom, straight-line Riga alongside, fine usage from Mitawa (present-day Jelgawa in Latvia) (Mitau became a town of the Duchy of Courland in 1561 and became the capital of the united duchies of Courland and Semigallia. Because the duchy became a vassal of the Polish-Lithuanian Commonwealth, Mitau was also referred to by the Polish name Mitawa) (Image)

Est.$750

1839 outer FL addressed to Warszawa, with red Lublin 12/2 at upper right, also straight line BELZYCE, fine (Image)

Est.$150

1859 Russia 10k brown & blue, perf. 12 1/2, tied by "1" in concentric rings on outer FL used in 1859 from Warszawa to St. Petersburg, filing fold away from the stamp, v.f. (Image)

Est.$150

1860 10k blue & rose, forgery on horizontally laid paper, fine and relatively scarce (Image)

Est.$150

1860 10k blue & rose, beautiful colors, some paper adhesions, pen cross cancel (rare), fine, signed Wiatrowski (Fi.1ad) (Cat No. 1) (Image)

Est.$250

1860 10k dark blue & carmine, tied by "187" in concentric rings on large part of cover addressed to Warszawa, Tomaszow-Rawski departure cds alongside, part of red arrival cancel, filing fold through the stamp, fine appearance (Fi.1bb) (Cat No. 1) (Image)

Est.$500

1860 10k blue & rose, nice colors and relatively well centered, canceled on piece by "1" in concentric rings, fresh and most attractive stamp, signed Wiatrowski (Fi.1ad) (Cat No. 1) (Image)

Est.$150

1860 10k blue & rose, canceled on piece by "217" (Piatek) numeral, fine, signed Wiatrowski (Fi.1ad) (Cat No. 1) (Image)

Est.$300

1860 10k dark blue & carmine, canceled "1" in concentric rings, splendid color, fresh and fine stamp, signed Wiatrowski (Fi.1bb) (Cat No. 1) (Image)

Est.$250

1860 10k blue & rose, canceled "187" (Tomaszow Rawski), used twice (postal fraud), good perforations and color, signed Wiatrowski (Fi.1ab) (Cat No. 1) (Image)

Est.$250

1860 10k blue & rose, canceled "241" (Wloclawek) on small piece, fine, used twice (postal fraud), good perforations and color, signed Jungjohann and Wiatrowski (Fi.1ab) (Cat No. 1) (Image)

Est.$250

1860 10k blue & carmine, canceled "311" (Alexandrow Pograniczny), small thins, deep color, fine appearance, signed Wiatrowski (Fi.1b) (Cat No. 1) (Image)

Est.$250

1860 10k blue & rose, canceled "1" on outer FL from Warszawa to St. Petersburg, red "19/1" departure pmk alongside, fresh and v.f. Gunzburg cover (Cat No. 1) (Image)

Est.$1,500

1860 10k dark blue & carmine, canceled "1" on outer FL from Warszawa to St. Petersburg, red "6/12" departure pmk below, splendid rich color and well centered stamp, unfolded and fresh Gunzburg cover, signed Wiatrowski, with his 2015 certificate (Fi.1bb) (Cat No. 1) (Image)

Est.$1,500

1860 10k blue & carmine, deep shade, good perforations and color, canceled "73" (Lublin) and affixed on outer FL addressed to Warszawa, with 12/9 and 13/9 arrival pmks on red, also time of day "3/P", however, the stamp probably did not originate on this letter, sold AS IS (Cat No. 1) (Image)

Est.$500

1860 10k blue & rose, canceled "253" on outer FL from Plock to Warszawa, with bilingual departure 22/1 alongside, red arrival, also on back "23/1" Warszawa, fine cover from Plock, ex-Rachmanow (Cat No. 1) (Image)

Est.$2,500

1860 10k dark blue & carmine, deep shade, added blue frame for inner oval ("Podwojna odbitka"), canceled "DP" (Dworzec Praga), beautiful color, signed Wiatrowski (Fi.1bs) (Cat No. 1c) (Image)

Est.$750

1860 10k light greenish blue & rose, variety defective outer frame at left (Fi.B3), fine used, signed Wiatrowski (Fi.1ac) (Cat No. 1var) (Image)

Est.$300

1860 10k blue & rose, variety showing both left corners defective (Fi. B6), tied by "DP" in concentric rings on complete FL from Warszawa, used in 1864 to Riga, showing "Ekspedycya Poczt Dworzec Praga 11/5" departure pmk below, Riga arrival in Cyrillic letters on back, fine and relatively scarce variety on cover to Riga, signed Wiatrowski (Fi.1ad) (Cat No. 1var) (Image)

Est.$2,500

1860 10k light blue & rose, tied by "DP" in concentric rings on outer FL from Warszawa, used in 1864 to Bialystok, with red "Ekspedycya Poczt Dworzec Praga 17/8" departure pmk alongside, arrival docketing, fresh and fine cover (Cat No. 1) (Image)

Est.$2,500

1945 5zl red, margin block of four imperf. between, n.h., v.f. (Image)

Est.$150

1967 Olympics, 20gr runners and Olympic Rings inverted, horizontal gutter pair, n.h., v.f. and spectacular error (Fi.1613MK, 6,000zl for two singles) (Cat No. 1502var) (Image)

Est.$1,000