BLACKROCK: 1922 Envelope franked GB 1d scarlet, horizontal pair overprinted IRISH/FREE STATE/PROV.GOVt one being inverted, tied by cds dated BLACKROCK/18.JA.1922,...

Forgeries: 1921-22 GB 1/2d green, three singles, each bearing bogus Republic/Ireland/1921 overprint, on cover tied Wincanton cds, addressed to USA, plus...

Proof overprint in black for the 5-line format of the low values: Single showing double misplaced proof overprint on reverse of normal proof. Hibernian...

Proof overprint in red for the 5-line format of the low values: Lower left corner sheet marginal block of forty-five with combination of Stereo Setting...

1/2d green, with proof overprint in red, used, unusual and scarce

Proof overprint in black for the 5-line format of the low Thom values: Single row of twelve cliches, on whitish paper, from showing a fine array of cliche...

Proof overprint in black for the 5-line format of the low values - Matrix Proof: Twelve clichés in two marginal strips of six on whitish paper, showing...

1/2d green, block of four, tied by Hey-Dolphin machine first day cancel DUBLIN/FEB.17.1922/A, on envelope sent within Dublin to Rathgar, plus 1/2d in mint...

1/2d green and 1d scarlet, two singles, both tied by Hey-Dolphin machine first day cancel DUBLIN/FEB.17.1922/A, on envelope sent within Dublin to Dundrum,...

1/2d green and Thom 1 1/2d red-brown, two singles, both tied by Hey-Dolphin machine first day cancel DUBLIN/FEB.17.1922/A, on envelope sent to Shrewsbury,...

1/2d to 1s, attractive group of twelve covers, all neatly mounted and written up on album pages, showing a fine array of seven different registered usages,...

1d scarlet, in combination with Thom 2d die II & 6d, all tied on envelope to Denmark by the very rare skeleton PAQUEBOT/COBH/25(JU)22 cds, with month missing,...

1d scarlet, mint nh left sheet marginal single, with overprint shifted to the left and showing overprint inverted variety, fresh, very fine, and scarce....

1d scarlet, mint nh single, showing inverted overprint variety, fresh, fine and scarce (Hib.€375)

1d scarlet, mint single with overprint shifted to the left and showing overprint inverted variety, fresh, very fine, and very scarce. Hibernian T2a; €375+....

2 1/2d ultramarine and 3d violet, singles, both tied by machine first day cancels CORK/17.FEB.1922, on envelopes sent to Chesterfield, very fine and a...

2 1/2d to 10d part set of six values, all in blocks of four, each tied on registered covers to Rathmines, arrival bs, a very fine and scarce assembly.

9d agate, single, tied by machine first day cancel CORK/17.FEB.1922, on envelope sent to Chesterfield, also a mint block of four, plus two additional covers...

4d grey-green, single, tied by machine first day cancels CORK/17.FEB.1922, on envelope sent to Chesterfield, plus additional cover franked 4d pair tied...

5d yellow-brown, single, tied by machine first day cancel CORK/17.FEB.1922, on envelope sent to Chesterfield, also a mint block of four, very fine and...

2 1/2d to 1s part sets of both Dollard and Thom printings, all singles, each tied on covers to Rathmines or Dublin, some showing unusually put through...

2 1/2d blue, with red ovpt, block of four, tied GRANBY ROW DUBLIN/13.NO.23 cds, on registered cover to Rathmines, fine and scarce.

2 1/2d, 4d, and 9d red and carmine ovpts, group of mint singles and blocks of four, plus five covers, with single, mixed and registered frankings, a fine...

4d grey-green, with red ovpt, block of four, tied GRANBY ROW DUBLIN/13.NO.23 cds, on registered cover to Rathmines, fine and scarce.

4d grey-green, overprint in carmine, mint nh top sheet marginal block of fifteen, showing complete stereo from setting 2, neatly mounted and knowledgably...

4d grey-green with carmine ovpt, used singles, showing break over FOUR & broken crossbar to 4 varieties, very fine and scarce pair of used errors. Hibernian...

9d grey-green, with red ovpt, block of four, tied GRANBY ROW DUBLIN/13.NO.23 cds, on registered cover to Rathmines, arrival bs, fine and scarce.

2s6d chocolate brown, 5s rose red and 10s grey-blue, set of the three high values, all tied DUBLIN/6.MY.23 cds, on registered cover to Basel, Switzerland,...

10s dull grey-blue, mint and used singles, showing three mint and one used all with broken 'S' from printers plate 1/3, fresh, fine and scarce (Hib.€1'065)

10s grey-blue, mint single, with broken "S" in POSTAGE, showing the broken tail of "9" in 1922, fresh, very fine, and scarce. Hibernian T14; €180+.

10s grey-blue, mint bottom sheet marginal single, with broken "S" in POSTAGE, showing solid "a" in Rialtas and "c" in Sealadac, fresh, very fine, and scarce....

10s dull grey-blue, broken "S" in POSTAGE, used, with R2/1 major re-entry plate flaw, light corner bend, fresh, fine, and scarce used variety. Hibernian...

10s dull grey-blue, broken "S" in POSTAGE, mint, with R2/1 major retouch plate flaw, fresh, very fine, and scarce variety. Hibernian T14c; €450.

10s dull grey-blue, broken "S" in POSTAGE, used single, with strokes over TEN plate flaw, fresh, fine, and scarce used variety. Hibernian T14c; €525.

10s dull grey-blue, broken "S" in POSTAGE, mint single, with strokes over TEN plate flaw, fresh, fine, and scarce variety. Hibernian T14c; €475.

10s grey-blue, mint single, with broken "S" in POSTAGE, showing strokes over TEN from R4/2, perfs., fresh, very fine, and scarce. Hibernian T14c; €475....

10s grey-blue, mint single, with broken "S" in POSTAGE, showing strokes over TEN from R4/2, perfs., few tone spots, very fine, and scarce. Hibernian T14c;...

10s grey-blue, used single, with broken "S" in POSTAGE, showing strokes over TEN from R4/2, short perfs., toned, scarce. Hibernian T14c; €525.

10s dull grey-blue, broken "S" in POSTAGE, used single, with short third line error, fresh, very fine, and used variety. Hibernian T14ea; €450.

10s grey-blue, mint single, with broken "S" in POSTAGE, showing a major overprint shift to the left and short third line varieties, fresh, very fine, and...

10s dull grey-blue, broken "S" in POSTAGE, mint single, with overprint at left error, fresh, very fine, and scarce. Hibernian T14e; €450.

10s dull grey-blue, broken "S" in POSTAGE, used single, with overprint at left and short third line error, fresh, very fine, and a scarce combination of...

1 1/2d red-brown, single, tied by machine first day cancel CORK/17.FEB.1922, on envelope sent to Chesterfield, also a mint control block of four, very...

1 1/2d to 1s, group of 18 covers and postcards neatly mounted and written up on album pages, mostly single frankings, plus two registered usages, one to...

1 1/2d red-brown and 2d orange, die II, plus Dollard 1/2d and 1d, singles, all tied by first day cancel BALLSBRIDGE/17.FE.1922, on envelope registered...

1 1/2d red-brown, three singles, all showing date at top variety, plus Dollard 1/2d green also with misplaced overprint, all tied GRANBY ROW/29.MR.22 cds,...

2d orange, die I and II, both singles, tied by first day cancels of DUBLIN/FEB.17.1922/A machine cancel and BALLSBRIDGE DO DUBLIN/17.FE.22 cds, on envelopes...

1s bistre-brown, single, tied by machine first day cancel CORK/17.FEB.1922, on envelope sent to Chesterfield, also a two mint control blocks of four, very...

1 1/2d to 1s the Barry Cousins specialised overprint study neatly mounted and knowledgeably written up on 54 album pages, showing a fine array of all values...

1/2d to 2d, group of 11 covers neatly mounted and written up on album pages, showing single, multiple and mixed value frankings, plus two registered usages,...