1861 2p Dull Rose on Soft Yellowish Paper, Perf 9 An impressive mint horizontal pair IMPERFORATE VERTICALLY BETWEEN, large part original gum, light thinning from hinge removal, Fine appearance and of great rarity. (SG 1a £11,000)

We are aware of only four pairs:

(1) "Provenance" Collection (January 1983; Lot 2056), fine unused with visible stain on left stamp;
(2) Eastern Auctions (June 2015; Lot 468 - sold for $5,250 hammer), fine with part OG, paper adherence covering most of right-hand stamp, tiny thin;
(3) Louis Sidney Crosby (January 2018; Lot 566), unused (no gum), small faults, soiling, imperforate vertically (not a true imperforate vertically between)
(4) the example offered here. (Image)

Cat. Value 7500 $

1861 3p Dark Blue on Soft Yellowish Paper, Perf 9 A fantastic mint example displaying a very strong and complete DOUBLE IMPRESSION ERROR throughout the design, despite a few short perfs and a couple minute gum thin specks it is unusually well centered with deep rich colour and still retains a large portion of its brown original gum (not crackly as is often the case). A very scarce and visually striking stamp, VF OG (Unitrade cat. $12,000) (Image)

Estimate 2500 $

1870 (circa.) 4p Queen Victoria Trial colour plate proof in light blue on wove paper; reverse shows large portion of the 3p dark blue stamp. Unusual and appealing, VF (Image)

Estimate 200 $

1863 9p Violet, Perf 11½-12 An exceptional mint block with superior centering, in a darker shade than normally encountered, natural gum wrinkle on lower left stamp. One of the nicest mint blocks we have seen of this difficult stamp, VF+ NH (Image)

Cat. Value 1200 $

1869 4p Black on Soft Yellowish Wove Paper, Perf 11½-12 An appealing mint single with upper left corner margin, imperforate vertically between sheet margin and stamp, full pristine original gum; a scarce variety in choice condition, VF NH (Image)

Cat. Value 500 $

1870 4½p Queen Victoria Engraved Trial Colour Die Proof by British American Bank Note, printed in red brown on india paper 35 x 40mm, faint (albino) engraver's guidelines shown along edge of the proof. A very appealing proof in near issued colour, VF and rare (Image)

Estimate 1000 $