Nyasaland. 1903-04 CA set of ten to £10 each overprinted 'specimen', large part original gum, a couple of very light tone spots in places, otherwise fine. S.G. 59s-67s, £925 (Image1)

Est. £250-350

Nyasaland. 1903-04 CA £10 grey and blue, a fairly well-centred example of this rare high value, lightly mounted mint; signed Behr and E. Diena, accompanied with E. Diena Certificate (1990). S.G. 67, £8,500 (Image1)

Est. £3,000-5,000

Nyasaland. 1908-11 set of ten to £1 and 1913-21 set of twelve to £1, good to fine and with large part original gum; the odd tone spot on some values. S.G. £1,300+ (Image1)

Est. £300-400

Nyasaland. 1908-11 MCA £10 purple and ultramarine, fresh and lightly mounted mint. A most attractive example of this rare high value, signed A. Diena and E. Diena and accompanied by Certificates from both, (1965) and (1992) respectively. S.G. 82, £12,000 (Image1)

Est. £5,000-6,000

Nyasaland. 1913-21 MCA £10 purple and dull ultramarine, overprinted 'specimen', large part original gum. S.G. 99s, £800 (Image1)

Est. £150-250

Nyasaland. 1913-21 MCA £10 purple and dull ultramarine, marginal from the foot of the sheet, fresh bright colours; large part original gum. A fine example of this scarce high value. Philatelic Foundation (1975) and Brandon (1989) Certificates. S.G. 99, £8,000 (Image1)

Est. £2,500-3,500

Nyasaland. 1919 MCA £10 purple and royal blue, well-centred and fresh, large part original gum; signed A. Diena. S.G. 99e, £4,000 (Image1)

Est. £1,500-2,500

Nyasaland. 1919 MCA £10 purple and royal blue, variety nick in top right scroll, a fiscally used example; this variety is scarce and not listed by Stanley Gibbons used. R.P.S. Certificate 'after comparison' (2010). S.G. 99e var. (Image1)

Est. £250-300