C1-C9: 1928 to 1946 Airmails complete, 9 values, og, never hinged, all but C2 very fine. (Image)

Cat. Val. 260.00

C3: 1932 6¢ on 5¢ brown olive Airmail block of four, og, never hinged, fine. (Image)

Cat. Val. 35.00

C4: 1932 6¢ on 5¢ brown olive Ottawa Conference Airmail block of four, used with Fort St. John B.C. cds, fine. (Image)

Est. 20+

C5: 1935 6¢ red brown Daedalus in Flight Airmail in Plate 1 upper left inscription block of 10, og, never hinged, almost very fine. (Image)

Cat. Val. 48.00

C5(4),231: 6¢ yellow brown Airmail block of four tied by TORONTO 27 APR 1937 machine cancel and additionally tied by boxed violet AIRMAIL handstamp alongside a similarly tied 1¢ Mufti stamp in 25¢ total franking to Airmail cover addressed to a passenger 'aboard R.M.S. "Colborne", due May 2/37, Georgetown, BRITISH GUIANA', with AIR MAIL G.P.O. BRITISH GUIANA 1 MY receiver on back, clean and very fine. (Image)

Est. 60+