DG Plate 2 1d. black, Double letter 'D', S.G.AS15c,

used on an entire letter from London to Edinburgh 17 September 1840, large margins, tied by a red Maltese Cross cancellation, London date stamp of despatch on the reverse, Edinburgh code 'Δ M' arrival 19 September, central vertical filing crease; fine. (S.G. £550+)

PROVENANCE
R.C. Alcock