Catalog Number:	C1
Description:	Plane Over Map of Canada
Denomination:	5c
Color:	sepia
Variety:
Printer:	Engr.
Year:	1928
Date Issued:	09/21/28
Perforation:	12
Watermark:	Unwmk.
Paper:
Value:

Catalog Number:	C1a
Description:	Plane Over Map of Canada
Denomination:	5c
Color:	sepia
Variety:	imperf. pair
Printer:	Engr.
Year:	1928
Date Issued:	09/21/28
Perforation:	Imperf.
Watermark:	Unwmk.
Paper:
Value:

Catalog Number:	C2
Description:	Mercury and Western Hemisphere
Denomination:	5c
Color:	sepia
Variety:
Printer:	Engr.
Year:	1930
Date Issued:	12/04/30
Perforation:	11
Watermark:	Unwmk.
Paper:
Value:

Catalog Number:	C3
Description:	Plane Over Map of Canada
Denomination:	6c on 5c
Color:	olive brown
Variety:
Printer:	Engr.
Year:	1932
Date Issued:	02/22/32
Perforation:	12
Watermark:	Unwmk.
Paper:
Value:

Catalog Number:	C3a
Description:	Plane Over Map of Canada
Denomination:	6c on 5c
Color:	olive brown
Variety:	inverted surcharge
Printer:	Engr.
Year:	1932
Date Issued:	02/22/32
Perforation:	12
Watermark:	Unwmk.
Paper:
Value:

Catalog Number:	C3b
Description:	Plane Over Map of Canada
Denomination:	6c on 5c
Color:	olive brown
Variety:	double surcharge
Printer:	Engr.
Year:	1932
Date Issued:	02/22/32
Perforation:	12
Watermark:	Unwmk.
Paper:
Value:

Catalog Number:	C3c
Description:	Plane Over Map of Canada
Denomination:	6c on 5c
Color:	olive brown
Variety:	triple surcharge
Printer:	Engr.
Year:	1932
Date Issued:	02/22/32
Perforation:	12
Watermark:	Unwmk.
Paper:
Value:

Catalog Number:	C3d
Description:	Plane Over Map of Canada
Denomination:	6c on 5c
Color:	olive brown
Variety:	pair, one w/o surcharge
Printer:	Engr.
Year:	1932
Date Issued:	02/22/32
Perforation:	12
Watermark:	Unwmk.
Paper:
Value:

Catalog Number:	C4
Description:	Mercury and Western Hemisphere
Denomination:	6c on 5c
Color:	olive brown
Variety:	Ovpt. OTTAWA Conf.
Printer:	Engr.
Year:	1932
Date Issued:	07/12/32
Perforation:	11
Watermark:	Unwmk.
Paper:
Value:

Catalog Number:	C5
Description:	Daedalus
Denomination:	6c
Color:	red brown
Variety:
Printer:	Engr.
Year:	1935
Date Issued:	06/01/35
Perforation:	12
Watermark:	Unwmk.
Paper:
Value:

Catalog Number:	C5a
Description:	Daedalus
Denomination:	6c
Color:	red brown
Variety:	horiz. pair, imperf. vert.
Printer:	Engr.
Year:	1935
Date Issued:	06/01/35
Perforation:	12
Watermark:	Unwmk.
Paper:
Value:

Catalog Number:	C5b
Description:	Daedalus
Denomination:	6c
Color:	red brown
Variety:	imperf. pair
Printer:	Engr.
Year:	1935
Date Issued:	06/01/35
Perforation:	Imperf.
Watermark:	Unwmk.
Paper:
Value:

Catalog Number:	C6
Description:	Seaplane Over Steamship
Denomination:	6c
Color:	blue
Variety:
Printer:	Engr.
Year:	1938
Date Issued:	06/15/38
Perforation:	12
Watermark:	Unwmk.
Paper:
Value:

Catalog Number:	C6a
Description:	Seaplane Over Steamship
Denomination:	6c
Color:	blue
Variety:	imperf. pair
Printer:	Engr.
Year:	1938
Date Issued:	06/15/38
Perforation:	Imperf.
Watermark:	Unwmk.
Paper:
Value:

Catalog Number:	C7
Description:	Airforce Training
Denomination:	6c
Color:	blue
Variety:
Printer:	Engr.
Year:	1942
Date Issued:	01/01/42
Perforation:	12
Watermark:	Unwmk.
Paper:
Value:

Catalog Number:	C7a
Description:	Airforce Training
Denomination:	6c
Color:	blue
Variety:	imperf. pair
Printer:	Engr.
Year:	1942
Date Issued:	01/01/42
Perforation:	Imperf.
Watermark:	Unwmk.
Paper:
Value:

Catalog Number:	C8
Description:	Airforce Training
Denomination:	7c
Color:	blue
Variety:
Printer:	Engr.
Year:	1943
Date Issued:	01/01/43
Perforation:	12
Watermark:	Unwmk.
Paper:
Value:

Catalog Number:	C8a
Description:	Airforce Training
Denomination:	7c
Color:	blue
Variety:	imperf. pair
Printer:	Engr.
Year:	1943
Date Issued:	01/01/43
Perforation:	Imperf.
Watermark:	Unwmk.
Paper:
Value:

Catalog Number:	C9
Description:	Canada Geese
Denomination:	7c
Color:	blue
Variety:
Printer:	Engr.
Year:	1946
Date Issued:	09/16/46
Perforation:	12
Watermark:	Unwmk.
Paper:
Value:

Catalog Number:	C9a
Description:	Canada Geese
Denomination:	7c
Color:	blue
Variety:	Booklet pane of 4
Printer:	Engr.
Year:	1946
Date Issued:	09/16/46
Perforation:	12
Watermark:	Unwmk.
Paper:
Value:

Catalog Number:	CE1
Description:	Transatlantic Mail Plane
Denomination:	16c
Color:	ultramarine
Variety:
Printer:	Engr.
Year:	1942
Date Issued:	07/01/42
Perforation:	12
Watermark:	Unwmk.
Paper:
Value:

Catalog Number:	CE1a
Description:	Transatlantic Mail Plane
Denomination:	16c
Color:	ultramarine
Variety:	imperf. pair
Printer:	Engr.
Year:	1942
Date Issued:	07/01/42
Perforation:	Imperf.
Watermark:	Unwmk.
Paper:
Value:

Catalog Number:	CE2
Description:	Transatlantic Mail Plane
Denomination:	17c
Color:	ultramarine
Variety:
Printer:	Engr.
Year:	1943
Date Issued:	04/17/43
Perforation:	12
Watermark:	Unwmk.
Paper:
Value:

Catalog Number:	CE2a
Description:	Transatlantic Mail Plane
Denomination:	17c
Color:	ultramarine
Variety:	imperf. pair
Printer:	Engr.
Year:	1943
Date Issued:	04/17/43
Perforation:	Imperf.
Watermark:	Unwmk.
Paper:
Value:

Catalog Number:	CE3
Description:	Transatlantic Mail Plane with ^ accent
Denomination:	17c
Color:	ultramarine
Variety:
Printer:	Engr.
Year:	1946
Date Issued:	09/16/46
Perforation:	12
Watermark:	Unwmk.
Paper:
Value:

Catalog Number:	CE4
Description:	Transatlantic Mail Plane with ` accent
Denomination:	17c
Color:	ultramarine
Variety:
Printer:	Engr.
Year:	1946
Date Issued:	01/00/00
Perforation:	12
Watermark:	Unwmk.
Paper:
Value: