Photographic Proofs, 1947-1958, all likely produced by the Post Office for promotional purposes. Includes 15 proofs for 19 stamps, some minor duplication, a few with minor creases that can be easily trimmed off, otherwise very fine. (Image)

Est $ 100

1969 (6c) Children Praying Christmas Issue with Black Colour Omitted, mint never hinged block of four, fresh and extremely fine. Unitrade quotes 400 copies known, and very few are in multiples or even ever offered on the market. Accompanied by a 2015 Greene Foundation certificate. (Image)

Unitrade $ 12,000

1970 5c and 6c Christmas Full Sheets, with two sheets of 519p to 523p and two sheets of 524 to 528, each having a common design centre block of 4. Mint never hinged, very fine.

Unitrade $ 800

1974 8c Pacific Coast Indians with Missing Bird on Totem Pole, being the left stamp of a right marginal strip of three, mint never hinged and very fine. (Image)

Est. $ 50

1973 15c RCMP Musical Ride Imperforates, with a sheet margin horizontal pair and a vertical strip of three. Small usual wrinkles and the backs, even if mint never hinged, have adherence. Very fine appearance. (Image)

Unitrade $ 600

1983 $5 Point Pelee, complete mint never hinged field stock pane of 25, with complete and clear reverse impression of all the black impressions on back (not an offset from another sheet), almost as if the black ink had soaked through the paper (see close-up scan). Scarce and very fine. (Image)

Est. $ 200

1990 39c Legendary Creatures Sheet, Perforated, 12.5 x 12, from the Folklore series. Full mint never hinged sheet of 50 including four of the rare plate blocks, see footnote in Unitrade. Catalogued at $425 each, plus the rest of the stamps at $15 each. Most sheets had blank corners. A rare item in an intact sheet. Very fine. (Image)

Unitrade $ 2,210

1996 52c Gravenstein Apple, Perforated 13.1, mint never hinged matched set of plate blocks. Very fine. (Image)

Unitrade $ 600

2002 $1.25 Year of the Horse Souvenir Sheet Essay, mint never hinged, without tagging, fully embossed with an overall quadrille grid, as described and priced as a footnote in Unitrade. Very fine. (Image)

Unitrade $ 850

2003 48c N.H.L. Hockey Souvenir Sheet, with water activated gum x10. Scarce sheet. A good dealer's lot. (Image)

Unitrade $ 195

2006 51c Queen Elizabeth II 80th Birthday Imperforate horizontal pair, with die cutting omitted from a booklet pane, very fine. Accompanied by a 2016 Richard Gratton AIEP certificate. (Image)

Unitrade $ 350

2015 Error Souvenir Sheet of five contains one of the $1.20 error stamps issued 3 July 2015 to honor Dinosaur Provincial Park, one of three Alberta sites shown on the five-stamp UNESCO World Heritage Sites issue. Unfortunately, the Hoodoo formations shown on the upper left stamp were from East Coulee, Alberta, 60 miles from the park. In an unprecedented move Canada Post recalled the booklets and souvenir sheets with the stamps depicting inaccurate images. Very Fine. (Image)

Est. $ 120

2015 Error Souvenir Sheet of five contains one of the $1.20 error stamps issued 3 July 2015 to honor Dinosaur Provincial Park, one of three Alberta sites shown on the five-stamp UNESCO World Heritage Sites issue. Very Fine. (Image)

Est. $ 120

2015 Error Booklet UNESCO $7.20 booklet of six, contains two of the $1.20 error stamps plus the corrected reissued booklet for comparison. Very fine. (Image)

Est. $ 100

2015 Error Booklet UNESCO $7.20 booklet of six, contains two of the $1.20 error stamps. Very fine. (Image)

Est $ 100

British American Bank Note Company Trial Colour Essays set of 4 with lady facing left in blue, green, carmine and brown, with "SPECIMEN" at top, "OTTAWA" & "CANADA" beside lady & "B.A.B.N.Co." at bottom. Scarce, never hinged, very fine. (Image)

Est. $ 100

British American Bank Note Company Trial Colour Essays set of 7 imperforate singles with lady facing left in carmine, blue, black, multi colour and black with unprinted center, with "SPECIMEN" at top, "OTTAWA" & "CANADA" beside lady & "B.A.B.N.Co." at bottom. With and without gum, scarce and very fine. (Image)

Est. $ 200

British American Bank Note Company Trial Colour Essays lot of 3 imperforate pairs with lady facing left in carmine, blue, black and multi colour and black, with "SPECIMEN" at top, "OTTAWA" & "CANADA" beside lady & "B.A.B.N.Co." at bottom. Gum and ungummed. Nice item for the specialist, very fine. (Image)

Est $ 200

Circa 1967 Baby Sisters Experimental Essay or Test Stamps, showing two young girls. Imperf between on right pairs in a block of 12, with straight edge on the left, in colours ranging from green, blue to black with never hinged Davac gum. From engraved experimental booklet sheet printings by British American Bank Note Company in preparation for the Centennial series. Very fine. (Image)

Est. $ 100

Circa 1967 Baby Sisters Experimental Essay or Test Stamps, showing two young girls. Imperf between vertically in tete-beche gutter block of 8, in brown. Never hinged dextrose gum. Folded along one of the gutter perforations. Nice item for the specialist. Fine to very fine. (Image)

Est. $ 100

Circa 1967 Baby Sisters Experimental Essay or Test Stamps, showing two young girls. Imperf between vertically on the right and left in a block of 16, in colours ranging from pink, red, green, blue to black with never hinged Davac gum. Has a plate or printing number in the top margin. Interesting printing smear at left leaving a thin vertical blank area. Very attractive addition to a specialized collection. Fine to very fine. (Image)

Est. $ 200

2c deep blue Experimental Specimen, depicting the French "Marianne", with three items: a perforated single (gummed, NH), an imperforate pair and an imperforate single with large sheet margin at right (both ungummed thin paper). Printed by the American Bank Note Company, very fine and rare. (Image)

Est. $ 100