Canada - Semi Official Airmails . 1918, (25c) red & black Aero Club of Canada, without numerals. used on piece, without cancellation, lower left and diagonal crease, nevertheless a scarce example of Canada's first semi-official airmail, of which only 194 examples were printed, fine appearance. (Unitrade CLP1, CA$3,500). Used (Image1)

Est. US$300-400

Canada - Semi Official Airmails . 1918, Aero Club of Canada, without numerals of value,. tied to registered cover by green AEROPLANE flight cachet, in conjunction with 5c Admiral and 2+1c Admiral War Tax (Die II), those tied by Toronto roller cancel, accompanying Toronto c.d.s. (AU 26) and violet "AERIAL MAIL / AUG 26 1918 / TORONTO.CANADA" boxed cachet, to Ottawa, with same-day c.d.s. arrival backstamp, a scarce cover with only twenty six examples carried, this being particularly desirable as one of the few with the semi-official on the front, attractive and very fine. (Unitrade CLP1, CA$5,000+). Cover (Image1)

Est. US$3,000-4,000

Canada - Semi Official Airmails . 1918, (25c) red & black Aero Club of Canada, with numerals of value, . on smooth white paper, hinged, large part original gum, fresh and very fine. (Unitrade CLP2, CA$650). Mint H (Image1)

Est. US$200-300

Canada - Semi Official Airmails . 1918, (25c) red & black Aero Club of Canada, with numerals of value, . printed on smooth, white paper, hinged, fresh, well-centered, very fine. (Unitrade CLP2, CA$650). Mint H (Image1)

Est. US$200-300

Canada - Semi Official Airmails . 1918, (25c) red & black Aero Club of Canada,. wide-gutter, tete-beche pair on yellowish-paper, select centering, a desirable and scarce pair, very fine. (Unitrade CLP2d variety, CA$2,000). Mint H (Image1)

Est. US$500-750

Canada - Semi Official Airmails . 1919, $1 red & blue Aero Club of Canada,. tied to back of Roessler "Winged Letters" cover by blue "AERIAL MAIL / AUG 25 1919 / TORONTO.CANADA" boxed flight cachet, franked on front with 3c Admiral, tied by Toronto slogan cancel (AUG 25), endorsed "Via New York" and handstamped with violet "VIA AREOPLANE" barred cachet, with returned cover postmarked Mineola NY (AUG 25), to Toronto, this cover with some staining at right, a fine pair of challenging covers. (Unitrade CLP3, CA$925). Cover (Image1)

Est. US$300-400

Canada - Semi Official Airmails . 1919, $1 red & blue Aero Club of Canada,. tied to back of cover by boxed blue "Aerial Mail / Aug 25 1919 / Toronto, Canada", 3c Admiral tied to front by Kitchener AU 23 19 c.d.s., endorsed "Via New York & Aerial Service", edge stain confined to back, an attractive and very fine example of this scarce flight. (Unitrade CLP3, CA$925). Cover (Image1)

Est. US$400-500

Canada - Semi Official Airmails . 1924, ($1) black on red paper Estevan-Winnipeg Promotional Issue,. hinged, large balanced margins, very fine. (Unitrade CLP5, CA$400). Mint H (Image1)

Est. US$100-150

Canada - Semi Official Airmails . 1924, ($1) black on red paper Estevan-Winnipeg Promotional Issue. two examples, each on first flight cover to Winnipeg and bearing violet oval "Via Aeroplane / Oct 1st 1924 / Estevan, Sask" datestamp, one franked with 1c Admiral strip of three, the other single 2c Admiral, each with "Buy Souris Coal" advertising on back, minor wrinkling and edge faults, fine. (Unitrade CLP5, $550). This flight was to land in Winnipeg following a refuelling stop in Brandon, but engine trouble near Bienfait forced it to land in a nearby field, where the wheels hit hidden rocks, wrecking the airplane.. Cover (Image1)

Est. US$150-200

Canada - Semi Official Airmails . 1928, Moose Jaw Flying Club Special Flight cover,. affixed as usual to back of 2c Admiral cover, postmarked Moose Jaw (AUG 17), endorsed "Via Special Air Mail Flight / Moose Jaw to Winnipeg", with same-day arrival backstamp, 161 covers were carried on this flight piloted by H.C. Ingram, fresh and very fine. (Unitrade CLP7, CA$3,500). Cover (Image1)

Est. US$1,500-2,000

Canada - Semi Official Airmails . 1924, (25c) light green Laurentide Air Service Ltd,. lightly hinged, choice centering, fresh bright colour, a lovely example of this difficult stamp, very fine; ex-Bain. (Unitrade CL1, CA$2,000). Mint H (Image1)

Est. US$500-750

Canada - Semi Official Airmails . 1924, (25c) green Laurentide Air Service, Second Issue,. rouletted at top, complete booklet with green imprint, includes four panes with glassine interleaving, minor stain on front cover, else scarce and very fine. (Unitrade CL2a, CA$2,000). Mint NH (Image1)

Est. US$400-500

Canada - Semi Official Airmails . 1924, Laurentide Air Service, Haileybury to Rouyn First Flight. affixed to back of 3c Admiral cover, postmarked with Haileybury c.d.s. (OCT 24), to the McIntyre Porcupine Mines in Rouyn, with same-day arrival backstamp, endorsed in red manuscript "Rush / Laurentide Air Service," some creasing and reduced at left, yet a scarce commercial usage. (Unitrade CL2). Cover (Image1)

Est. US$200-300

Canada - Semi Official Airmails . 1925, Northern Air Service, pair of Experimental Flight Covers . one franked with 3c Admiral, tied by Haileybury c.d.s (MY 18), to Rouyn Lake, the other with 1c and 2c Admirals, tied by Rouyn Lake split-ring (MY 18), to Haileybury, both with corresponding same-day arrival backstamps and with violet two-line "FIRST EXPERIMENTAL FLIGHT" cachets, each having been flown by pilot B.W. "Bill" Broatch to demonstrate the viability of this route, a scarce pair as only eight are recorded carried, these being of particularly choice quality, very fine. (Unitrade CA$5,000). Cover (Image1)

Est. US$1,500-2,000

Canada - Semi Official Airmails . 1925, 25c blue Northern Air Service,. two covers, both franked with 3c Admirals and postmarked Rouyn Lake JU 27 25, one stamp showing the "blue dot left of monogram" variety (small stain at right of cover), the other signed by pilot B.W. Broatch, a nice pair, fine. (Unitrade CL5/5a, CA$425+). Cover (Image1)

Est. US$100-150

Canada - Semi Official Airmails . 1925, 25c blue Northern Air Service,. vertical tete-beche pair, hinged on top stamp, small stain on gum, scarce and fine. (Unitrade CL5a, CA$850). Mint H (Image1)

Est. US$150-200

Canada - Semi Official Airmails . 1926, (25c) Jack V. Elliot Air Service, unofficial essay in blue,. never hinged, large even margins, fresh and very fine. (Unitrade CL6, CA$500). Mint NH (Image1)

Est. US$150-200

Canada - Semi Official Airmails . 1926, (25c) red on yellow Elliot-Fairchild Air Service, pane of 8, . never hinged, showing the "Tall R" variety at positions 2 and 4, bright fresh color, very fine. (Unitrade CL8/8c, CA$675). Mint NH (Image1)

Est. US$150-200

Canada - Semi Official Airmails . 1926, (25c) red on yellow Elliot-Fairchild Air Service, pane of 8, . never hinged, showing the "Tall R" variety at positions 2 and 4, attractive and very fine. (Unitrade CL8/8c, CA$675). Mint NH (Image1)

Est. US$150-200

Canada - Semi Official Airmails . 1926, (25c) blue on yellow Elliot-Fairchilds Air Service, pane of 8, . never hinged, showing the "filled-in wing" variety at position 1, upper-right stamp inverted, very fine. (Unitrade CL9, CA$420). Mint NH (Image1)

Est. US$100-150

Canada - Semi Official Airmails . 1926, (25c) blue on yellow Elliot-Fairchilds Air Service, pane of 8, . never hinged, showing the "filled-in wing" variety at position 1, upper-right stamp inverted, attractive and very fine. (Unitrade CL9, CA$420). Mint NH (Image1)

Est. US$100-150

Canada - Semi Official Airmails . 1926, Elliot-Fairchild Air Transport, Rouyn to Hailebury,. affixed to back of 2c Admiral cover, postmarked Rouyn (AU 12), violet flight cachet on back "Rouyn, Que, to Haileybury, ONT / Flight by" and signed by pilot Glyn Burge, to the Iroquois Hotel in Asbestos Mines, with AU 17 c.d.s. backstamp, fresh and very fine. (Unitrade CL10). Cover (Image1)

Est. US$100-150

Canada - Semi Official Airmails . 1926, Patricia Airways & Exploration Co, small "T" in "TO" variety,. on reverse of Sioux Lookout to Pine Ridge first flight cover, postmarked Sioux Lookout (JUL 7), the semi-official tied by Pine Ridge same-day receiver and green flight cachet, very fine. (Unitrade CL13b, CA$750; AAMC CL13b-2602b). Cover (Image1)

Est. US$200-300

Canada - Semi Official Airmails . 1926, Patricia Airways & Exploration Co, small "T" in "TO" variety, . on Pine Ridge to Sioux Lookout first flight cover, franked with 4c Admiral, tied by Pine Ridge P.A. & E JU 7/26 commercial datestamp, semi-official further tied by Sioux Lookout JUL 7 c.d.s., green maple leaf flight cachet, very fine. (Unitrade CL13b, CA$750). Cover (Image1)

Est. US$200-300

Canada - Semi Official Airmails . 1926, Patricia Airways & Exploration Co, route inscription essay. on Sioux Lookout to Pine Ridge first flight cover, franked with pair of 1c Admirals, postmarked Red Lake (JUL 7), endorsed "Air Mail / Via Sioux Lookout" in manuscript, green maple leaf flight cachet, semi-official showing the Style One overprint with larger blue-black route inscription and essay of RED LAKE / AIR MAIL in distinctly thicker and larger gothic-style type, Sioux Lookout c.d.s. arrival backstamp (JUL 8), scarce and very fine. (Unitrade CL13c essay). Cover (Image1)

Est. US$300-400