1959 5c St Lawrence Seaway with Inverted Centre, mint never hinged, fresh and very fine, without any finger print marks sometimes found on these desirable stamps. Accompanied by a 1997 Greene Foundation Certificate. (Image)

Unitrade $ 12,500

1959 5c St Lawrence Seaway with Inverted Centre, a used sheet margin single, with the usual machine cancel, very fine. Unitrade values used stamps for less than mint, yet they consistently sell for much more, as they are rarer, and this sheet margin copy is sure to please. Accompanied by a 2015 Greene Foundation Certificate. (Image)

Unitrade $ 10,000

1963 15c Ultramarine Canada Goose, a lot of 30 matched sets of plate blocks, all signed by the designer of the stamp Angus Henry Shortt. Very fine, and catalogue value is for 120 regular plate blocks only. (Image)

Unitrade $ 1,500

1963 15c Ultramarine Canada Goose, large Bileski lot of items signed by designer Angus Henry Shortt, including a total of about 453 NH plate blocks (396 of which are signed by designer, rest are not, and catalogue value is $5,662). Also included are 64 first day of issue-postmarked maxi-cards (about a quarter of which are signed), plus 173 cacheted first day covers, all franked with a plate block of four and all signed by designer. (Image)

Est $ 500

1963 15c Ultramarine Canada Goose, a lot of 235 first day of issue maxi-cards, cancelled either with a Winnipeg orb, or an Ottawa Day of Issue slogan machine, 111 of them are signed by the designer Angus Henry Shortt, and all are addressed to K. Bileski. Very fine. (Image)

Est $ 100

1965 5c Violet Blue Christmas with 1-Bar Tagging Errors, 3 different blank corner blocks, including lower left and lower right (all stamps with T2 tagging) and upper right with left stamps having T1 tagging and right stamps with T2 tagging, mint never hinged, very fine. Del Peters online tagging database $1,050. (Image)

Est $ 150

1967-73 4c and 6c Centennial with Dextrine Gum, both in mint never Hinged blocks of four with shifted vertical perforations, very fine. Rsv. $150. (Image)

Est $ 150

1970 5c and 6c Christmas Issues, two sets of four different complete sheets of 100, with two of each 5c + 6c tagged (field stock) and untagged (with plate inscriptions). The 5c values have "dot between M and A of Christmas" variety, unchecked for any other varieties. Very fine. (Image)

Unitrade $ 1,130

1971 (10c) Christmas Snowflakes with Silver Inscriptions Omitted, a mint never hinged and untagged complete sheet of 50, showing only the deep carmine square on each stamp. Very fine and ideal for the sheet, variety or Christmas stamp collector. (Image)

Est $ 500

1973 8c Algonkian Indian Se-Tenant Pairs With Tagging Errors, on fluorescent paper with HB back, one pair is untagged (Unitrade $200) while the second pair has one-bar tagging (Del Peters online tagging database #567aiT2, $150), mint never hinged, very fine. (Image)

Est $ 100

1973 1c, 2c, 6c and 8c Caricature Issues, all in mint never hinged blocks of four, each showing misperforation varieties. Very fine. Rsv. $180. (Image)

Est $ 200

1976 8c Blue Queen Elizabeth II, Perforated 13 x 13.3, BABN Printing, a bulk lot of 50 matched sets of plate 6 blocks of 4, all still in their original Canada Post shrink wrapping, very fine. Picture only shows a portion of the lot. (Image)

Unitrade $ 1,000

1976 25c Polar Bears with "Siamese Bears" Variety, a lot of 10 NH plate blocks of four, all from the lower left corner and from plate 3, very fine. (Image)

Unitrade $ 500

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

Unitrade $ 4,160

1977 25c Sugar Maple With Tagging Error, upper left and upper right blank corner blocks, with top stamps on each block showing top 60% covered by solid tagging, mint never hinged, very fine and rarely seen. Del Peters online tagging database $500. (Image)

Est $ 150

1978 (50c) Prairie Street Scene with "Ghost Town" Variety, a mint never hinged horizontal pair with sheet margin at left, with both stamps missing the brown inscriptions, telephone poles and lines, and some of the building details. Rare, with only 150 stamps known. The left stamp also shows a fairly substantial "green bug" variety on the right hand building, which is believed to be unique. Very fine. Rsv. $1,800. (Image)

Unitrade $ 6,000

1978 14c Red Parliament Coil With 1-Bar Tagging Errors, four "wide spacing" strips of 4, each with T2, T2, T6 and normal tagging, and a "narrow spacing" strip of four with T3, T3, T6 and normal tagging, mint never hinged, very fine. Del Peters online tagging database $575 and with Bileski note stating than less than 10 such strips exist. (Image)

Est $ 100

1977 12c Christmas Untagged Error, block of four, mint never hinged, fine-very fine. (Image)

Unitrade $ 500

1979 (17c) Green Queen Elizabeth II, misperforated and with black printing omitted (only a ghost print of CANADA can be seen on one stamp), bottom sheet margin single showing additional partial impression at bottom from adjoining pane. Only 10 recorded from the bottom row of the only recorded pane, of which 4 examples are known in corner blocks, very fine, never hinged and accompanied by a 2014 Richard Gratton AIEP certificate. Rsv. $550. (Image)

Unitrade $ 1,250

1979 17c Green Parliament, with Single Bar in Center Tagging, a mint never hinged complete field stock sheet of 100, very fine. (Image)

Tagging $ 2,500

1979 17c Parliament With Double Tagging Error, block of four and lower right blank corner block of four, each showing overlapping but clearly doubled tagging, mint never hinged, very fine. Unlisted in Del Peters online tagging database. (Image)

Est $ 100

1979 17c green Parliament, Printed on Gum Side, a mint never hinged block of 36, from top of sheet, very fine. (Image)

Unitrade $ 1,800

1982 30c Queen Elizabeth Untagged Error, on LF paper, 7 blocks of four (28 stamps in total), mint never hinged, very fine. (Image)

Unitrade $ 700

1983 32c Maple Leaf Untagged Error, 8 singles and one block of 4 (12 stamps in total), mint never hinged, very fine. (Image)

Unitrade $ 600

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

Unitrade $ 2,000