Great Britain 1985 17p Famous Trains (Flying Scotsman) imperforate pair error, SG1272a.
A very fine unmounted mint, with full original gum, imperforate pair.
Very rare imperforate QEII error. Pierron records only 12 mint pairs.
Accompanied with a 2005 Brandon Certificate of Authenticity.
Previously sold by Stanley Gibbons in 2012 for £5,000. SG catalogue value: £2,000.
