1921 35c red, complete setting of 25, showing four different types, four stamps (pos.10,20,24-25) hinged, balance n.h., well centered, fresh and v.f. and rare complete setting (catalogue value for singles) cat. $7815 (Cat No. C3,3b,3d,3f) (Image)

Cat. $7815, Est.$4,000

1921 35c red, 1 1/2mm Spacing, used on commercial cover to Halifax, v.f., cat. $400 (Cat No. C3f) (Image)

Cat. $400, Est.$150

1930 "Miss Columbia", 50c on 36c green, l.h., well centered, v.f., signed Sanabria, Diena, etc. This stamp derives its name from the monoplane "Miss Columbia", piloted by Capt. Errol Boyd & Lt. Harry Connor, which made the trip from Harbour Grace to Croydon Airport, London. Only 300 copies of the 35c Caribou stamp were overprinted, of which at least half were used, cat. $9500 (Cat No. C5) (Image)

Cat. $9500, Est.$5,000

1930 "Miss Columbia", 50c on 36c green, l.h., well centered, v.f., signed Diena, L.W.C., etc. This stamp derives its name from the monoplane "Miss Columbia", piloted by Capt. Errol Boyd & Lt. Harry Connor, which made the trip from Harbour Grace to Croydon Airport, London. Only 300 copies of the 35c Caribou stamp were overprinted, of which at least half were used, cat. $9500 (Cat No. C5) (Image)

Cat. $9500, Est.$5,000

1930 "Miss Columbia", 50c on 36c green, horizontal pair, n.h. and post office fresh, well centered for this, fine-v.f., signed Diena. Only 300 copies of the 36c Caribou stamp were surcharged and sales were restricted to a single stamp to each buyer, hence few pairs are known (only 143 unused stamps exist), cat. $28000 (Cat No. C5) (Image)

Cat. $28000, Est.$15,000

1931 15c brown, vertical pair imperf. between, h.r., v.f., with 1999 PFC, cat. $1100 (Cat No. C9b) (Image)

Cat. $1100, Est.$600

1931 $1 blue, vertical pair imperf. between, h.r., natural gum crease, otherwise v.f., signed Kessler, cat. $1000 (Cat No. C11a) (Image)

Cat. $1000, Est.$500

1932 DO-X Surcharge, $1.50 on $1 blue, block of four (complete sheet), n.h., v.f., cat. $1700 (Cat No. C12) (Image)

Cat. $1700, Est.$1,000

1932 DO-X Surcharge, $1.50 on $1 blue, surcharge inverted, l.h., well centered, fresh and v.f., signed Diena and Herbert Bloch, with 2002 Vincent Greene and 2004 BPA certificates. These stamps were printed in sheets of four for use on the return flight of the Dornier DO-X from New York to Germany. While it has been estimated that as many as 13 blocks of four may have had the inverted surcharge applied in error, only 20-40 stamps still exist today. A major rarity, cat. $20000 (Cat No. C12a) (Image)

Cat. $20000, Est.$12,500

1933 5c light brown, imperf. vertical pair, n.h., v.f., cat. $375 (Cat No. C13a) (Image)

Cat. $375, Est.$200

1933 10c yellow, imperf. left margin horizontal pair, left stamp h.r., right stamp n.h., v.f., cat. $200 (Cat No. C14a) (Image)

Cat. $200, Est.$150

1933 30c blue, imperf. horizontal pair, unused without gum, v.f., cat. $725 (Cat No. C15a) (Image)

Cat. $725, Est.$200

1933 60c green, imperf. left margin vertical pair, top stamp l.h., bottom stamp n.h., v.f., cat. $725 (Cat No. C16a) (Image)

Cat. $725, Est.$400

1933 75c bister, imperf. horizontal pair, right stamp l.h., left stamp n.h., v.f., with 2002 BPA certificate, cat. $725 (Cat No. C17a) (Image)

Cat. $725, Est.$400