C1: 1928 5¢ brown olive, block of 4, bottom stamps nh, almost very fine. (Image)

Cat. Val. 40.00

C1c: 1928, 5¢ brown olive, vertical pair, HORIZONTAL IMPERFORATE nh, light toning to gum, f-vf (Image)

Cat. Val. 700.00

C1,C1i: 5¢ brown, UR Plate 2 block of ten, with SWOLLEN BREAST VARIETY, stamps nh and almost very fine (Image)

Cat. Val. 310.00

C2: 1930 5¢ Mercury, with SON cds, very fine. (Image)

Est. 25+

C3: 1932 6¢ on 5¢ brown olive, block of 4, nh, two very fine and two fine. (Image)

Cat. Val. 75.00

C3ii: 6¢ on 5¢ brown olive Airmail with OVERPRINT BADLY SHIFTED, og, nh, almost very fine. (Image)

Cat. Val. 142.00

C3ii: 6¢ on 5¢ Airmail Surcharge with BADLY MIS-PLACED/SHIFTED SURCHARGE, tied by Red Lake 11 DE '34 cds to cacheted Red Lake-Kenora Flight cover, clean and very fine. (Image)

Est. 30+

C4: 6¢ on 5¢ Ottawa Conference Airmail Surcharge tied by violet TRISTAN DA CUNHA triple ring handstamp to unsealed pink envelope to Winnipeg with manuscript 'printed matter' upper left, return address handstamp on back reads 'Capt. T. A. Smye, London' alongside manuscript notations 'Rec'd by Wm. Paton (by post) 9-8-38' and 'Rec'd A. Kemp 19-8-38', a fascinating use of a Canadian stamp used abroad. (Image)

Est. 100+