1921, Halifax Airmail, black overprint (''Air'' and ''Mail'' have space 1½mm and with a period after ''1921'') on 35c red, used on flown cover from St. Johns to Halifax on November 24, backstamped, minor reversal flaws, still VF, Unitrade C.v. CAD$400 (Image)

1933, Labrador issue, 10c yellow orange, vertical imperforated pair, enlarged margins around, full OG, NH, VF, C.v. $300, Unitrade C.v. CAD$400, Est. $150-$200 (Image)

1967, Baby Sisters, experimental test booklet pane of 10 printed by British American Bank Note Company when developing their 1967 Centennial Issue booklets, the left stamps are printed in dark green and the right stamps in bright blue, no gum as produced, NH, VF, Est. $200-$250 (Image)

1857, Prince Albert, imperforated proof of 6c in black, horizontal pair on India paper mounted on card, vertical orange ''SPECIMEN.'' overprint, balanced margins, fresh and VF, Unitrade #2TCx, CAD$750 as singles, Est. $275-$350 (Image)

1867, Beaver, two imperforated trial color proofs of 5c in orange vermilion with diagonal overprint ''SPECIMEN'' in carmine or horizontal - in black, printed on India paper with nice margins around, no gum as produced, VF, Unitrade #15TCiii, 15TCiv, C.v. CAD$600, Est. $250-$300 (Image)

1867, Beaver, imperforated trial color proof of 5c in black, block of four on India paper with enlarged margins at right and bottom and clear at left and top, no gum as issued, NH, VF and rare multiple, Unitrade #15TCvii, C.v. CAD $3,200++, Est. $1,200-$1,500 (Image)

1868, Large Queen, imperforated plate proof of 12½c in blue, printed directly on card, nice margins, showing short entry at left scroll at top variety (position 67), no gum as produced, VF, ex-Brigham, Unitrade C.v. CAD$750 for proof w/o variety, Est. $500-$600 (Image)

1873, Queen's face to the left, imperforated engraved essay of 3c in deep orange, printed on India and mounted on card, no gum as issued, fresh and VF, NSSC TESQx6a, C.v. US$750, Est. $325-$400 (Image)

1897, Queen Victoria, 10c brown red, imperforated well margined horizontal pair on vertically wove paper, no gum as issued, NH, VF, C.v. $550, Unitrade C.v. CAD$750, Est. $300-$350 (Image)

1898, Queen Victoria, Diamond Jubilee issue, ½c-$5, complete set of 16 card mounted plate proofs, beautiful margins, bold colors, no gum as produced, NH, VF, only 400 complete sets possible, Unitrade C.v. CAD$7,000, Est. $2,000-$2,500 (Image)

1897, Queen Victoria, Maple Leaf issue, imperforated proof of 6c brown, horizontal pair on India paper mounted on card, nice and fresh, no gum as produced, VF, Unitrade C.v. CAD$450, Est. $180-$220 (Image)

1898, Queen Victoria Numeral issue, ½c black, horizontal imperforated pair printed on vertical wove paper, nice margins around, no gum as produced, NH, VF, Unitrade #74v, C.v. CAD$500, Est. $200-$250 (Image)

1898, Queen Victoria Numeral issue, ½c black, right margin horizontal imperforated pair printed on horizontal wove paper, no gum as produced, NH, VF, Unitrade #74iv, C.v. CAD$500, Est. $200-$250 (Image)

1898, Queen Victoria Numeral issue, large die proof of 3c in carmine, size 41x59mm, printed on India paper (removed from a card) with imprint ''F-113. American Banknote Co. Ottawa'', fresh quality, no gum as issued, VF and very scarce, ex-Brigham, NSSC65dp14, C.v. US $2,000, Est. $750-$900 (Image)

1898, Queen Victoria Numeral issue, 5c blue on bluish horizontal wove paper, horizontal imperforated pair, balanced margins, no gum as issued, NH, VF, C.v. $1,100, Unitrade #79ii, C.v. CAD$900, Est. $350-$450 (Image)

1899, Queen Victoria Numeral issue, imperforated proof of 5c in blue, block of four printed on India paper and mounted on bottom right corner card (penciled positions 89-90/99-100 on reverse), fresh and VF, Unitrade C.v. CAD$800++, Est. $325-$400 (Image)

1898, Queen Victoria Numeral issue, 8c orange on vertical wove paper, bottom left corner margin horizontal imperforated pair, no gum as issued, NH, VF, C.v. $1,100, Unitrade #82ii, C.v. CAD$900, Est. $350-$450 (Image)

1898, Queen Victoria Numeral issue, imperforated plate proof of 8c in orange on India paper mounted on card, horizontal pair, no gum as issued, NH, VF, Unitrade C.v. CAD$450, Est. $150-$200 (Image)

1903, King Edward VII, 2c carmine, type I, imperforated block of four with enlarged margins at top and left, bold color, no gum as produced, NH, VF and rare multiple, only 400 imperforated stamps were issued, Green Foundation certificate, C.v. $1,650++, Unitrade C.v. CAD $2,200 as two pairs, Est. $750-$1,000 (Image)

1903, King Edward VII, 7c olive bistre, left sheet margin horizontal imperforated pair printed on vertical wove paper, nice margins, no gum as issued, NH, VF, C.v. $750, Unitrade C.v. $1,000, Est. $350-$450 (Image)

Four Classic Singles: 1893-1903, ''Widow Weed'' 20c vermilion, Diamond Jubilee 15c steel blue, Maple Leaf 8c orange and King Edward VII 7c olive bister, all are very fresh with full OG, fine centering, Unitrade C.v. CAD$1,580, Est. $200-$250 (Image)

1908, Quebec Tercentenary issue, large die proof of 7c in black, printed on India paper and mounted on sunken die card, proof size 78x68mm, slight traces of hinges on reverse, fresh, VF and rare, Green Foundation certificate, NSSC 87dp7, C.v. US$1,500, Est. $900-$1,000 (Image)

1927, 60th Anniversary of Confederation, 1c-12c, imperforated complete set of five in horizontal or vertical pairs, the high value pair has right sheet margin, full OG, NH, VF, C.v. $900, Unitrade C.v. CAD$1,200, Est. $600- $750 (Image)

1928-29, King George V Scroll issue, 1c-8c, imperforated set of six values in horizontal pairs, nice margins all around, full OG, NH, VF, C.v. $890, Unitrade C.v. CAD $1,275, Est. $600-$750 (Image)

1928-29, King George V Scroll issue, 1c-$1, complete set of 11 in vertical pairs imperforated horizontally, 20c with left sheet margin, nicely centered with bold colors, full OG, NH, VF and scarce, only 250 sets possible, C.v. $3,870, Unitrade C.v. CAD$5,350, Est. $2,000-$2,500 (Image)