Ceylon. 1912-25 MCA 50r. dull purple, part original gum; part hinge remnant though a fresh example of this stamp. R.P.S. (1976) and B.P.A. (1999) Certificates. S.G. 320, £650 (Image1)

Est. £180-240

Ceylon. 1912-25 MCA 100r. grey-black, large part original gum, fresh and fine. B.P.A. Certificate (2000). S.G. 321, £3,250 (Image1)

Est. £800-1,200

Ceylon. 1912-25 MCA 500r. dull green, an unused example with fresh colour and bright appearance, large part original gum; gum lightly toned, otherwise fine and very rare. R.P.S. Certificate (1976). S.G. 322, £8,500 (Image1)

Est. £1,500-2,000

Ceylon. 1912-25 MCA 1000r. purple on red, a lovely mint example with large part original gum which is a touch toned, although barely noticeable and not affecting the fine and fresh appearance of this great rarity. B.P.A. Certificate (1980). S.G. 323, £35,000 (Image1)

Est. £5,000-7,000

Ceylon. 1921-32 Script 100r. brownish grey, large part original gum; slightly toned, and light gum bend at left. Scarce. S.G. 359, £3,250 (Image1)

Est. £400-600

Ceylon. 1921-32 Script 100r. grey-black, unused with large part original gum, a fraction gum toned, otherwise fine. Initialled A. D(iena). S.G. 359h, £3,250 (Image1)

Est. £400-600

Ceylon. 1921-32 Script 100r. dull purple and blue, unused with large part original gum; a trifle gum toned otherwise fine. B.P.A. Certificate (1999). S.G. 360, £2,750 (Image1)

Est. £300-400