1926 (25c) Patricia Airways "Style One" Green and Red Proof on Buff Paper with Double Impression of the Airplane, an imperforate horizontal pair from the top of the sheet, showing red and green inscriptions in the margins. Both stamps show a very pronounced doubling of the red airplane image, and the red inscription in the right margin is also doubled. A scarce and desirable item, with full never hinged gum, very fine. Unitrade catalogue value for a pair without the red doubling is $1,600. (Image)

Estimate $ 500

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

Unitrade $ 1,125

Yukon Airways & Exploration Co. Ltd. Unauthorized Rouletted Reprints, in red, blue and orange, each colour is in a mint never hinged sheet of 10, with 25 sheets of each (75 in all). A few of the sheets have stuck together, still majority are very fine. Listed in Unitrade footnote at $25 for a 4 colour set, which would give this group a pro-rated value of $4,500. (Image)

Estimate $ 300

Yukon Airways & Exploration Co. Ltd. Unauthorized Rouletted Reprints, a group of seven complete sets of four colours all four colours (red, blue, fuchsia and orange) in sheets of 10, all mint never hinged. These are listed in Unitrade footnote at $25 per set, which would give a catalogue value of $1,750 for this group. (Image)

Estimate $ 150

Group of 48 Semi-Official Airmail Issues, in black mounts on van Dam album pages. All stamps mint hinged unless noted, with CL #s 2, 3, 5 (no gum), 5b, 6 (x2, 1 creased), 7 (x2, n.h.), 8 (n.h.), 10 (n.h.), 11 (n.h.), 12 (n.h., faults), 12a (n.h.), 13, 14, 15, 18, 19, 20b (c.v., $1,250), 24, 25, 25a, 25b (n.h.), 25c, 26, 27, 28, 29, 30 (x8, four never hinged, five with inverted overprint), 40 (n.h.), 42 (used), 44, 45, 46a, 47, 48, 49, 50 (used), 51, 52 (n.h.). The lot also include CLP3 (faulty), CLP3a thin paper (no gum), and CLP5 (n.h.), and 4 first flights franked with CL40, CL42 (x2), and CL50. Owner's 2022 Unitrade catalogue value totals $9,140. Online photos show the better pages. A few faults as noted, still fine to better. (Image)

Unitrade $ 9,140

Accumulation of Mint Semi-Official Airmails, 1924-1934, neatly organized in Vario-style stock pages, noting singles, with a few blocks and complete panes, with CL #s 3 (x3), 6 (x7), 6d, 9 (x3, and a pane of 8 with some perforation separation), 10 (x5), 11, 12 (x4), 12b (x2), 40 (x8), 41 (x7), 42 (x7), 43 pane of 8 (c.v. $375), 44 (x14), 45 pane of 4 ($400), 46 (x2), 48 (x12), 50 (x9), 51 (x9), 52. The lot also includes CL42 proof on thick card ($450), along with CL42 unofficial reprints in 4 colours with a set of singles and complete sheets. Unitrade 2024 catalogue value totals $5,223 (counted as mint hinged only, noting some never hinged material in the lot). Online photos show all the stamps, overall fine to very fine. (Image)

Unitrade $ 5,223

Group of 16 Semi-Official Airmail Issues, neatly organized in clear mounts on 12 quadrille pages. All stamps mint hinged unless noted, with CL #s 6a imperforate pair (no gum, c.v. $600), 6d white spot variety (thin), 7 (n.h.), 7a imperforate pair with shifted swastika background 1cm to the right (n.h., $600), 10, 10b (n.h.), 12, 12b, 12d (n.h., $1,125), 14, 14g (n.h.), 15 (n.h.), 25 pale yellow paper (used), 26c block of 4 (1 n.h., $540 total, from lower half of sheet), 25e ($480 total, from lower half of sheet, toning spots on upper pair), 27($375). The lot also includes three Patricia Airways & Exploration Company cachet proofs, used for the CL13 first flight, and CL18 (x2) first flight. Online photos show the better pages. A few faults as noted, still a useful group in fine to very fine condition. (Image)

Unitrade $ 5,384