Great Britain 1855 1d red brown Plate 19 imprimatur, SG24var.
The unique unused four margin top left hand corner marginal imperforate imprimatur showing plate number "19" and part sheet inscription, lettered "AA" (first stamp from sheet).
Provenance: Ex Earl of Crawford & Colonel Bates (1934) collections.
Previously sold by Stanley Gibbons in 2012 for £4,750.
