1882 5sh rose, White Paper, Plate 4, London cds, nicely centered, thin, v.f. appearance (SG 134), cat. £4200 (Cat No. 90a) (Image)

Cat. £4200, Est.$500

1882 œ5 bright orange, white paper, neat round Belfast No 18, 91 pmk, beautiful color and well centered, apparently reperforated at right, fresh and fine appearance (SG 137) cat. £4750 (Cat No. 93) (Image)

Cat. £4750, Est.$1,000

1912 1/2p green and 1p scarlet, imperforate horizontal pairs, n.h., v.f. (SG 346b,350b) cat. £650 (Cat No. 158A-B,var) (Image)

Cat. £650, Est.$500

1962 3p National Productivity Year, Queen's Head (blue) omitted, right sheet margin single, l.h., v.f., only 18 examples recorded, with 2014 BPA certificate (SG 632a), cat. £6500 (Cat No. 388a) (Image)

Cat. £6500, Est.$3,500

1964 International Geographical Congress, 4p variety "violet omitted" (face value missing), n.h., v.f., with regular stamp included for comparison (SG 652a) cat. £300 (Cat No. 411a) (Image)

Cat. £300, Est.$150

1973 3p Explorers, Queen's Head (gold) omitted, lower left margin se-tenant block of four (two se-tenant horizontal pairs), n.h. but with some gum glazing affecting the right stamps, v.f., with 2014 BPA certificate which states "large part original gum" (SG 923/924b), cat. £3000 (Cat No. 690a) (Image)

Cat. £3000, Est.$1,500

1840 1p black, "V.R." Official, unused without gum, margins all around, fresh color and sharp impression, v.f. example of this world-class rarity, with 1975 BPA certificate (while 3,323 sheets were prepared for use, the idea of special "Official" stamps was abandoned and all but 21 sheets were destroyed. Of those, 13 sheets were used for experiments with obliterator cancels, but a few managed to make it through the post) (SG V1) cat. £32000 (Cat No. O1) (Image)

Cat. £32000, Est.$15,000

1903 Government Parcels, 1sh green & carmine, h.r., faint toning at top, well centered, fine, with 2017 certificate (SG O72) cat. £650 (Cat No. O38) (Image)

Cat. £650, Est.$300

1896 O.W. Official (Office of Works), 1/2p vermilion, h.r., v.f., with 1998 PFC (SG O31) cat. £350 (Cat No. O44) (Image)

Cat. £350, Est.$200

1896 O.W. Official (Office of Works), 1/2p blue green, l.h., v.f., with 2017 certificate (SG O32) cat. £475 (Cat No. O46) (Image)

Cat. £475, Est.$250

1902 R.H. Official (Royal Household), 1/2d blue green, 1p scarlet, l.h., v.f., with 2017 certificate (SG O91,92) cat. £700 (Cat No. O63,64) (Image)

Cat. £700, Est.$400

1903 Admiralty Official, 1 1/2p, 2p, 2 1/2p and 3p four different, mostly l.h., fresh and fine-v.f., with 2017 certificate (SG O103-106) cat. £1575 (Cat No. O74-77) (Image)

Cat. £1575, Est.$800

1950 George VI stationery die proofs, 1/2d-2 1/2d five different, v.f. (Image)

Est.$250