Original Artist's Sketch Board, a black "British Scraper Board" with several sketches in white ink depicting a postman, three effigies of Queen Elizabeth II (two resembling the issued stamp #330 of 1953) plus a few other sketches of borders, etc. A unique and very fine item. Rsv. $275. (Image)

Est $ 300

1946 14c Hydroelectric Station, Imperforate at Right, used, with part c.d.s. cancel. There is a perforation fault in margin at right (away from image), else a rare and unique (in used condition) error. Catalogue value is for mint (unpriced for used). Ex. Trillium Collection. Rsv. $1,100. (Image)

Est $ 1,500

1969 (6c) Christmas Issue with Black Colour Omitted, a mint never hinged single of this dramatic error, very fine and one of only 400 known. Accompanied by a 2009 Richard Gratton AIEP certificate. Rsv. $1,600. (Image)

Unitrade $ 2,500

Set of 4 Different 1970 Christmas Complete Sheets of 100, including 2 tagged (field stock) and 2 untagged (with plate inscriptions), featuring all of the listed varieties, such as "dot between M and A" (522iii, 522piii), "top of last S flat" (523i), "red spot on cheek of snowman" (#523ii), "blue thread on snowman" (523iii, 523piii), "scratch through window" (525ii, 525pii), and "flaming window" (528pi). A rare opportunity to acquire the complete set of sheets, especially with all listed varieties. Very fine, mint never hinged. (Image)

Unitrade $ 610

Set of 4 Different 1970 Christmas Complete Sheets of 100, including 2 tagged (field stock) and 2 untagged (with plate inscriptions), featuring all of the listed varieties, such as "dot between M and A" (522iii, 522piii), "top of last S flat" (523i), "red spot on cheek of snowman" (#523ii), "blue thread on snowman" (523iii, 523piii), "scratch through window" (525pii), and "flaming window" (528pi). A rare opportunity to acquire the complete set of sheets, especially with all listed varieties. Very fine, mint never hinged. (Image)

Unitrade $ 606

1971 6c Maple Leaves Imperforate, a mint never hinged horizontal pair from right of sheet, very fine and rare, with only 75 pairs recorded. Rsv. $275. (Image)

Unitrade $ 1,200

1962 (Jan.14) 5c Bright Blue Wilding, with Ottawa Experimental Tagging, a mint never hinged block of four from bottom of sheet, clearly showing the experimental Ottawa tagging, with two 2mm tag bars running directly over the "5's" at both sides. Tag bars shine bright under UV lamp. A rare variety (one of 7 known blocks of four according to owner), the first we have handled and probably missing from most collections. Very fine. (Image)

Tagging $ 400

1975 8c Subarctic Indians with Major Perforation Error, mint never hinged bottom block of ten, with vertical perforation variety resulting in two right horizontal pairs being imperforate between. There is also an extra vertical perforation cutting through the two right stamps. An impressive modern error, very fine. Rsv. $900 (Image)

Unitrade $ 3,000

1974 7c Dark Brown Louis St. Laurent with Tagging Variety, a mint never hinged field stock sheet of 100, with all vertical tagging bars shifted to the left, resulting in each stamp having only one bar at centre right, scarce and very fine. (Image)

Tagging $ 5,000

1975 8c Chown and Cook with Major Variety, a plate block of 10 from the left of the pane (showing two plate inscriptions), with "double paper" variety on the 4th and 5th row stamps, being where the roll of paper was joined together prior to the perforation and printing processes. Very fine and an undervalued variety as only one join is known. Accompanied by a 2006 Richard Gratton AIEP certificate. Rsv. $675. (Image)

Est $ 750

1978 12c Blue Parliament on Hibrite Paper, a mint never hinged complete field stock sheet of 100, very fine. (Image)

Unitrade $ 4,160

1988 14c Queen Elizabeth II with Red Colour Omitted and Untagged, the so-called "White Queen" error, mint never hinged and very fine. Accompanied by a 2007 Richard Gratton AIEP certificate. Rsv. $575. (Image)

Unitrade $ 2,000

1979 $1 Fundy National Park with Inscriptions Lightly Doubled, mint never hinged, with sheet margin at right, very fine. Accompanied by a 2020 Richard Gratton AIEP certificate. Rsv. $90. (Image)

Unitrade $ 350

1979 ($2) Kluane National Park with Silver Inscriptions Omitted, mint never hinged with sheet margin at bottom, very fine. Accompanied by a 2020 Richard Gratton AIEP certificate. Rsv. $120. (Image)

Unitrade $ 400

1977 12c Christmas Issue with Major Perforation Variety, a mint never hinged lower left corner block of 10, missing the entire left side comb perforations. A striking variety and very fine. Rsv. $850. (Image)

Unitrade $ 3,150

1978 14c Natural Resources Se-Tenant Pair with Triple Variety, mint never hinged, with #765i (silver inscriptions double printed,cat $400) and 766b (brown inscriptions double printed, cat $800), with #766b having a pre-printing paper crease as well. Accompanied by a 2017 Richard Gratton AIEP certificate. Rsv. $325. (Image)

Unitrade $ 1,200

1981 (17c) Antique Mandora with Triple Error, a mint single printed on gum side (never hinged), missing all inscriptions and missing tagging. A very fine example of this popular error stamp. Accompanied by a 2011 Richard Gratton AIEP certificate. Rsv. $575. (Image)

Unitrade $ 2,000

1983 32c Maple Leaf with "Maple Leaf in Winter" Variety, a mint never hinged sheet margin single, missing its beige background colour and with tagging also omitted, very fine. A scarce modern variety. (Image)

Unitrade $ 1,500

1982 ($1.50) Walterton Lakes with Black Inscriptions Omitted, a mint never hinged single from the bottom of the unique sheet of 25, undervalued in Unitrade as another copy recently sold for $8,625 at public auction. Accompanied by a 2010 Greene Foundation certificate. Rsv. $2,800. (Image)

Unitrade $ 7,500

Group of Four Imperforate Definitive Items, all mint never hinged and includes #952a (strip of four perforated at top only, $200 for a pair), #1194Cg (strip of three, $375 for a pair only), and #1362c (sheet margin horizontal pair, $750). A very fine group. (Image)

Unitrade $ 1,325

1982 30c Canada Day Pane of 12, with Tagging Omitted, mint never hinged, very fine and scarce. (Image)

Unitrade $ 2,000

1986 ($5) La Mauricie National Park with Dark Blue Inscriptions Omitted, a mint never hinged sheet margin single, with "CANADA POSTES / POSTAGE $5" inscriptions missing. All 25 known examples are off centre, rare and very fine. Accompanied by a 1987 Greene Foundation certificate. Rsv. $1,600. (Image)

Unitrade $ 3,500

1989 $2 McAdam Railway Station Vertical Strip of Five, Part Imperforate, mint never hinged, with second stamp missing lower perforations, third and fourth stamps missing vertical and horizontal perforations. Very fine. Rsv. $575. (Image)

Unitrade $ 2,000

Group of Four Imperforate Flag Coil Items, all mint never hinged and includes #1194Cg (strip of four, $750), 1394a (pair, $225), 1396a (strip of 4, $400) and 1396a (strip of four with bottom stamp perforated, $200). A very fine group. (Image)

Unitrade $ 1,575

1991 42c Flag Imperforate, a mint never hinged horizontal pair, with a light paper clip bend on the left stamp (could probably be pressed-out), still very fine and one of the better modern imperforates. (Image)

Unitrade $ 1,000