Great Britain 2007 1st Abolition of the Slave Trade error, SG2728aa.
A superb unmounted mint, with full original gum, top marginal horizontal se-tenant pair with gold and phosphor (detailing to Queen's head and face value) omitted.
Offered with normal pair for comparison and display purposes.
A rare QEII error. Pierron records circa eight mint pairs.
SG Catalogue Value: £3,000.
