Great Britain 1840 Mulready progressive die proof, SGME1var.
A very fine progressive proof of the Mulready stereotype, printed in black on India paper, with frame lines and the “W. MULREADY R.A.” and “JOHN THOMPSON” imprints at foot, but before the addition of the value inscription and side instruction panels.
A particularly fine and fresh example, without the heavy toning and foxing so frequently encountered on these fragile India paper proofs. Very scarce in this condition.
An important proof from the development of the revolutionary Mulready postal stationery, introduced in May 1840 alongside the Penny Black as part of Britain's new Uniform Penny Postage system.
SG Catalogue Value: From £3,000.
