1924 (25c) Red Laurentide Air Service Ltd. Partial Booklet, with front cover printed in red, plus back cover printed with "Designed and printed by / Dodd-Simpson Press Ltd. Montreal". The booklet contains three panes of 2, unstapled, fresh and very fine. Catalogue value is for three panes only. (Image)

Unitrade $ 2,250

1926 (25c) Deep Blue Fairchild Air Transport Ltd. a mint never hinged complete pane of 10, with second and 4th rows inverted, quite fresh with a tiny bit of separation between two stamps, very fine. (Image)

Unitrade $ 750

1926 (25c) Ultramarine Fairchild Air Transport Ltd. a mint never hinged complete pane of 10, with all stamps in column 2 inverted, quite fresh and very fine. (Image)

Unitrade $ 825

1926 (25c) Patricia Airways "Style One" Set of Four Trial Colour Proofs, all perforated on gummed canary, buff, green and deep blue paper, all four singles coming from the same left position of the sheet, mint never hinged, with a very light gum blemish on the deep blue paper, a very fine and scarce set. (Image)

Unitrade $ 2,100

1926 Patricia Airways "Style One" with Type B 5c Overprint Ascending in Black, mint never hinged, with bright colour, fresh and very fine. (Image)

Unitrade $ 412

1926 Patricia Airways "Style One" with Type B 5c Overprint Descending in Red, a mint never hinged right sheet margin single, fresh and very fine. (Image)

Unitrade $ 1,125

1926 Patricia Airways "Style One" with Type B 5c Overprint Descending in Red, a mint never hinged upper right sheet corner single, hinged in margin only, fresh and very fine. (Image)

Unitrade $ 1,125

1926 Patricia Airways "Style One" with Type D (5c) Overprint Descending in Black, a mint never hinged right sheet margin single, fresh and very fine. (Image)

Unitrade $ 2,250

1926 Patricia Airways "Style One" with Type D (5c) Overprint Descending in Black, a mint never hinged bottom sheet margin single, previously hinged in margin only, fresh and very fine. (Image)

Unitrade $ 2,250

1926 (50c) Patricia Airways "Style Two" without Overprint, a mint never hinged upper left corner single, showing the $4.00 over $2.00 surcharge in margin, fresh and very fine. (Image)

Unitrade $ 300

1926 (50c) Patricia Airways "Style Two" without Overprint, a mint never hinged lower right corner single, fresh and very fine. (Image)

Unitrade $ 300

1926 (50c) Patricia Airways "Style Two" without Overprint, with "FED" Handstamp in Green, a mint never hinged right sheet margin single, fresh and very fine. The "FED" initials are for F.E. Davidson, the financier for Patricia Airways. A rare stamp, especially in this pristine and positional condition, as most were used on mail. (Image)

Unitrade $ 3,750

1927 Patricia Airways "Style Two" with 10c Ascending Type A Overprint in Red, mint never hinged, fresh and very fine. (Image)

Unitrade $ 525

1927 Patricia Airways "Style Two" with 5c Ascending Type B Overprint in Black, mint never hinged, fresh and very fine. A scarce stamp, especially in such nice condition. (Image)

Unitrade $ 1,875

1927 Patricia Airways "Style Two" with 5c Ascending Type B Overprint in Red, a mint never hinged, fresh and very fine. A scarce stamp, especially in such nice condition. (Image)

Unitrade $ 1,875

1927 Patricia Airways "Style Three" Rouletted with 5c Ascending Type C Overprint in Black, Red and Green, offered in three mint never hinged upper right corner singles (all from the same position), very fine and a lovely trio. (Image)

Unitrade $ 547

1927 Patricia Airways "Style Three" Rouletted with 10c Ascending Type A Overprint in Red and 5c Descending Type C, 34 mm Overprint in Black, a mint never hinged (lightly hinged in margin only) lower left corner single, with plate 6 inscription, very fine. (Image)

Unitrade $ 225

1927 Patricia Airways "Style Three" Rouletted with 10c Ascending Type A Overprint in Red and Descending Type D Overprint in Black, a mint never hinged upper left corner vertical pair, lightly hinged in margin only, very fine and fresh. (Image)

Unitrade $ 750

1927 Patricia Airways "Style Three" Rouletted with 10c Ascending Type A Overprint in Red and Descending Type D Overprint in Purple, a mint never hinged left margin single, very fine and fresh. (Image)

Unitrade $ 375

1927 Patricia Airways "Style Three" Rouletted with (5c) Type D Overprint in Black, Purple and Green, a group of 5 different mint never hinged singles, with black (inverted), purple (both ways) and green (both ways). The sheet margin items are lightly hinged in margin only, which does not detract from this being a very fine and fresh group (Image)

Unitrade $ 577

1927 Patricia Airways "Style Three" Rouletted with (5c) Type D Overprint in Green, two mint never hinged upper right corner vertical pairs, one pair with descending overprints, the other with inverted overprints. Both pairs are lightly hinged in the margin only, very fine. (Image)

Unitrade $ 450

1927 (10c) Black with Orange Background Western Canada Airways Service, a mint never hinged complete pane of 50, with full selvedge all around, showing the "ONE OZ. TEN CENTS" imprints at top and bottom. Remarkably fresh and very fine. (Image)

Unitrade $ 1,200

1928 (10c) Patricia Airways Limited Issue, a mint never hinged complete pane of 8 from plate 6, remarkably fresh, with bright colours, extremely fine. (Image)

Unitrade $ 562

1928 5c Ultramarine British Columbia Airways Co. Semi-Official, a mint never hinged complete pane of 55, with Unitrade-listed varieties in positions 19, 23, 30, 33, 45 and 46. Horizontal separation at right, else very fine. (Image)

Unitrade $ 987

1929 (10c) Purple Commercial Airways Ltd. with VIA AIR, a mint never hinged complete pane of 10, with pane margin at left, showing the "broken c in cial" plate variety on upper right stamp, insignificant very light bend in lower right corner margin, still very fine and fresh. (Image)

Unitrade $ 2,187