1865 10c Black Prince Albert, a mint block of four with full original gum, bottom pair is never hinged, very fine. Accompanied by a 2017 Greene Foundation certificate. Rsv. $1,800. (Image)

Unitrade $ 4,000

1c Prince of Wales Plate Proof in Violet Brown, a sheet margin block of four on card, very fine. (Image)

Unitrade $ 320

1876 5c Blue Harp Seal, Rouletted, a mint block of four with full original gum, very fine. A scarce multiple. Accompanied by a 2010 Richard Gratton AIEP certificate. Rsv. $675. (Image)

Unitrade $ 1,600

1880 1c Grey Brown Prince of Wales, a mint plate inscription block of four from bottom of sheet, with full original gum, bottom stamps are never hinged (one has minute gum loss), extremely fine. Value given is for four singles only. Rsv. $450. (Image)

Unitrade $ 1,600

1894 10c Black Schooner, a mint block of four with full original gum, bottom pair is never hinged, fresh and extremely fine. Accompanied by a 2019 Greene Foundation certificate. Rsv. $850. (Image)

Unitrade $ 1,600

1897 ½c King Edward VII as Child Proof, a block of four on card-mounted India paper, extremely fine. Rsv. $65. (Image)

Est $ 200

1898 1c Yellow Green Queen Victoria with SPECIMEN Overprint, a mint never hinged lower right corner block of 10, each stamp with security punch, very fine. (Image)

Unitrade $ 500

1897 3c Orange Queen Alexandra with SPECIMEN overprint, a mint never hinged lower left corner block of 14, with "American Bank Note Company, New York" inscription in lower selvedge. Stamps are all very well centered and each have a security punch, very fine. (Image)

Unitrade $ 700

1897 5c Duke of York Proof, a block of four on card-mounted India paper, extremely fine. Rsv. $65. (Image)

Est $ 200

1898 2c Rose Carmine Map of Newfoundland with SPECIMEN Overprint, in red, on a a complete sheet of 100, mint never hinged, with each stamp security punched. The selvedge shows a datestamp at bottom reading JAN 31 1910, and the top reads at left a plate number (F2366) and a red boxed handstamp reading "Return to / Records and Specimen Dept.". Stamps are centered from fine to mostly very fine and there is a little separation in the selvedge, still a rare and lovely sheet. Rsv. $1,250. (Image)

Unitrade $ 5,000

1910 1c Green King James I, Horizontal Pair, Perforated 12 x 11, Imperforate Between, mint never hinged, rare and very fine. Accompanied by a 2019 Greene Foundation certificate. Rsv. $675. (Image)

Unitrade $ 1,500

1911 1c Queen Mary Plate Proof in Black, a sheet margin block of four on card, with centering cross in middle of the selvedge at top. Small mark above top left stamp which does not detract, still a pretty item and very fine. (Image)

Est $ 100

1947 4c Princess Elizabeth, Horizontal Pair Imperforate Vertically, mint never hinged, with the usual light natural gum bend, fine. Rsv. $110. (Image)

Unitrade $ 450

1919 $1 on 15c Scarlet Alcock and Brown Flight Surcharge, a mint never hinged block of four, fresh and very fine. Accompanied by a 2010 Richard Gratton AIEP certificate. Rsv. $850. (Image)

Unitrade $ 2,400

1919 $1 on 15c Scarlet Alcock and Brown Flight Surcharge, a mint never hinged block of four, with two regular stamps, one with missing comma and one with missing comma and period, very fine. Rsv. $950. (Image)

Unitrade $ 3,200

1921 35c Red Halifax Airmail Overprint, a mint never hinged single with 1½ mm between AIR and MAIL, very fine and fresh. Accompanied by a 2019 Richard Gratton AIEP certificate. Rsv. $375. (Image)

Unitrade $ 900

1932 $1.50 on $1.00 Blue Dornier DO-X Flight Surcharge, mint hinged, extremely fine. Accompanied by a 2019 Richard Gratton AIEP certificate. Rsv. $170. (Image)

Unitrade $ 400

1932 $1.50 on $1.00 Blue Dornier DO-X Air Mail with Inverted Red Surcharge, mint lightly hinged, very fine. The stamp has a few unobtrusive expert and owner signatures and handstamps on back. Of the 8,000 surcharged stamps issued, it is believed that about 52 had an inverted surcharge (13 blocks of four). A lovely example of this world rarity, rarely offered and accompanied by a 1972 Royal Philatelic Society certificate. Rsv. $16,000. (Image)

Unitrade $ 30,000

1933 5c Light Brown Labrador Issue Imperforate, a complete sheet of 50, mint never hinged with full original gum. The sheet has a few creases at top and a small rust spot at top rear from an old paper clip, still rare and desirable. Very fine and Ex. Sir Gawaine Baillie collection (2006). Rsv. $5,400. (Image)

Unitrade $ 14,000

1933 $4.50 on 75c bistre Balbo Flight, Perforated 14.3, mint never hinged, from position 4 of the surcharge setting, very fine. Accompanied by a 2017 Greene Foundation certificate. Rsv. $375. (Image)

Unitrade $ 900

Group of Mint and Used First Cents Issues, all on a double-sided stock page, one side with used and one side with mint. Quantities vary from one copy to 12. We note a few imprints, one mis-perforated, a few re-entries, etc. The first three rows of mint have no gum, rest are mostly with original hinged gum. Some small faults here and there, still overall fine or better. (Image)

Scott $ 9,850

Group of Mint 1880-1896 Issues, with a good variety of shades (all counted as least expensive shade only), most are mint hinged, some have no gum, overall fine or better with a few small faults noted. (Image)

Scott $ 2,267