10c Special Delivery Large Die Proof in Blue Green, sunk-in on card measuring 157 x 145 mm, with die "F - 126" and "American Bank Note Co. Ottawa" inscriptions below image. A rare die proof, tiny stain in margin does not detract, very fine. Rsv. $1,800. (Image)

Est $ 2,500

10c Special Delivery Large Die Proof in Deep Olive Black, sunk-in on card measuring 225 x 151 mm, with die "F - 126" and "American Bank Note Co. Ottawa" inscriptions below image. A rare die proof, very fine. Rsv. $2,100. (Image)

Est $ 2,500

1898 10c Blue Green Special Delivery, mint never hinged, with balanced centering and extremely fine. Accompanied by a 2018 Richard Gratton AIEP certificate. Rsv. $475. (Image)

Unitrade $ 1,000

1932 10c Henna Brown Special Delivery, a mint never hinged upper right plate 1 block of four, small tear in margin at right, else very fine. (Image)

Unitrade $ 800

20c Special Delivery Trial Colour Large Die Proof, sunk-in on card measuring 201 x 152 mm, with "X-G-586" and CBN Co. inscription below stamp image. There is a pencil notation in margin indicating "wrong colour" as the shade is quite a bit brighter than the issued stamp. Very fine and rare. Rsv. $950. (Image)

Est $ 1,000

10c Special Delivery Large Die Proof in Colour of Issue, sunk-in on card measuring 211 x 154 mm, with "SPECIAL DELIVERY" inscription below stamp image. The sunk-in area shows evidence of two die-hardening holes, and the whole proof has a protective flap, which reveals a handstamp on back reading "C.B.N. Co. / OTTAWA / MAR 1 - 1939 / Engraving Dept." with a pencil signature. Very fine, fresh and quite rare. Rsv. $1,300. (Image)

Est $ 1,500

1939 10c dark green Special Delivery Imperforate, a mint never hinged horizontal pair, extremely fine and scarce. Rsv. $550. (Image)

Unitrade $ 1,400