Great Britain 1854 1d red brown Plate R.7. (Alphabet II), SG17var.
A superb unused top right hand corner marginal imperforate imprimatur lettered "AL", showing part sheet inscription & plate number “R.7".
A very rare example from the first approved printing sheet with only 21 examples being removed from the imprimatur sheet.
This is the only way to obtain an example from this reserve plate as it was prepared but never used.
Previously sold by Stanley Gibbons in 2013 for £7,000.
