Great Britain 1840 2d Blue, Plate 1, SG5.
A very fine used close to good four margin example lettered MK, neatly cancelled by a crisply struck black Maltese Cross.
Lovely fresh colour and one of the most startlingly bold examples of the black Maltese Cross cancellation I have ever seen.
GB Specialised Catalogue Number: DS5.
The Stanley Gibbons catalogue value is £975.