1840 (3 June) 1p Mulready envelope to Dublin, with red MC on front, Northwich departure datestamp in red and other markings on back, fine Mulready to Ireland (Image)

Est.US$250

1840 (21 Nov) FL from Dublin to Ballriggan, franked with 1p black, lettered G-F, margins all around, tied by reddish MC, with corresponding "No21 40/4E" departure datestamp on back, filing fold away from the stamp, fine Penny Black used from Dublin (Cat No. 1) (Image)

Est.US$250

1840 (21 Aug) folded "Whitehaven, Stranraer, and Glasgow" shipping company's schedule from Belfast to Moy, franked with 1p black, lettered J-I, close but clear margins all around, canceled by red MC, with corresponding "Belfast Aug 31, 1840" departure, Armagh transit and Moy (Sep 1) arrival pmks on back, fine Penny Black used from Belfast (Cat No. 1) (Image)

Est.US$250

1841 (4 Feb) FL from Belfast to Antrim, franked with 1p black, lettered B-G, ample margins all around, tied by red MC, with corresponding "Belfast Fe 4 1841" departure, blue Lurgan transit and Antrim (Feb 5) arrival pmks on back, fine Penny Black used from Belfast (Cat No. 1) (Image)

Est.US$250

1859 (16 Feb) small cover from Dublin to Paris, franked with pair of GB 2p blue, tied by "186" duplex, with corresponding departure cds alongside, red London transit on back, French "Amb. Calais" entry and red "PD", fine (Image)

Est.US$150

1907-16 Sinn Fein Propaganda labels, "Celtic Cross" in pale blue, "Hibernia & Harp" perf. 11, wide crown, blocks of four, l.h. at top, bottom stamps n.h., usual centering (Image)

Est.US$250

1907-16 Sinn Fein Propaganda labels, single and two blocks of four, mostly n.h., fine (Image)

Est.US$150

1912 Imperial Union, 1d emerald green, 1d dull orange, l.h. or n.h., fine-v.f. (Image)

Est.US$150

1920 Dollard House Essays, nine different, many sheet margin singles, perf. 12, l.h. or n.h., fine-v.f. (Image)

Est.US$500

1920 Fiji, 2d George V, imperforate single on gummed, Gaelic "SE" watermarked paper, n.h., v.f., rare (made in 1920 to demonstrate suitability of the Irish watermarked paper for typographic printing, usually canceled with a pen by the printer) (Hibernian E167, Euro 525) (Image)

Est.US$300

1922 1sh black "Hibernia & Harp" competition die essay on thick card, v.f., ex-Dixon & Crome (Image)

Est.US$150

1922 1/2p-10p, also 2p, 3p, 5p, 6p and 1sh n.h., total of 13 different vertical gutter pairs, fine-v.f. (catalogued as two sets) cat. $461 (Cat No. 1-8,26/35) (Image)

Cat. $461, Est.US$150

1922 1d scarlet, overprint double, both inverted, one albino, n.h., v.f., with 1990 APS certificate (SG 2b, £350 as hinged) cat. $600 (Cat No. 2c) (Image)

Cat. $600, Est.US$150

1922 1d scarlet, overprint double, both inverted, one albino, n.h., v.f., with photocopy of a 2004 MacDonnell certificate for a block of four from which this originated (SG 2b, £350 as hinged) cat. $600 (Cat No. 2c) (Image)

Cat. $600, Est.US$150

1922 1 1/2p, 2 1/2p and 4p, four different used on three Dublin Feb 17, 1922 FDCs to London, two with tape stains and minor additional cover flaws, also an additional 1 1/2p red brown on picture postcard, used on Feb 17 (First Day) from Dublin to Surrey, scarce (Cat No. 3,5,15,16) (Image)

Est.US$250

1922 Dollard, 9p black brown, carmine overprint, vertical gutter pair, n.h., v.f., ex-Bute (catalogued as two singles) (SG 25a) cat. $400 (Cat No. 11A) (Image)

Cat. $400, Est.US$150

1922 2 1/2p orange, Die I, II, used on separate FDCs from Cork and Kinsale to England, the latter with toning on back, scarce (Cat No. 16,16b) (Image)

Est.US$150

1922 2d orange, overprint inverted, n.h., v.f., cat. $375 (Cat No. 26a) (Image)

Cat. $375, Est.US$150

1922 2sh6p-10sh Seahorses, overprinted in blue black, set of three, n.h., v.f., with 2021 Sismondo certificate, cat. $3425 (Cat No. 36-38) (Image)

Cat. $3425, Est.US$1,000

1922 2 1/2p bright blue, block of four, upper right stamp Accent Omitted variety, n.h., regular stamps h.r., v.f. (Cat No. 48a) (Image)

Est.US$100

1925 2sh6p (l.h.), 5sh and 10sh n.h., v.f. (SG 83-85) cat. $655 (Cat No. 77-79) (Image)

Cat. $655, Est.US$150

1925 2sh6p-10sh Seahorses, wide and narrow date of each, n.h., v.f., cat. $1595 (Cat No. 77-79,77b-79b) (Image)

Cat. $1595, Est.US$750

1927 2sh6p-10sh Seahorses, horizontal pairs, se-tenant wide and narrow dates, n.h., v.f., last two with 1968 David Feldman certificates, cat. $5875 (Cat No. 77a-79a) (Image)

Cat. $5875, Est.US$1,500

1929 Catholic Emancipation, set of three used on registered Port Laoghaire 22 June 1929 FDC to London, fine-v.f., with arrival pmk (Hibernian C1-3, Euro 900) (Cat No. 80-82) (Image)

Est.US$250

1929-31 Catholic Emancipation, 3p dark blue single, also 2p pale blue, each on FDC, fine-v.f. (Hibernian Euro 400) (Cat No. 81,84) (Image)

Est.US$150