Great Britain 1840 Mulready Proof, SGME1var.
A very fine progressive die proof of the stereotype (State 3) without value inscription, printed on Indian paper (210 x 157mm) and folded to lettersheet format.
A couple of light tone spots as usually seen on these India paper proofs, but far finer than normally seen.
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.
Provenance: Ex. "Mayflower" Grand Prix Gold Medal Collection.
Accompanied with a 2005 Royal Philatelic Society (RPS) Certificate of Authenticity.
SG Catalogue Value: From £3,000.