Great Britain 1962 6d deep claret (Watermark Crowns, Whiter paper) imprimatur, SG579var.
A superb unmounted mint, with full original gum, bottom marginal horizontal pair of imperforate imprimaturs each with a "BPMA" handstamp on reverse, showing central sheet dividing arrow in margin.
A scarce pair from the first approved printing sheet for the issue.
Exceptional provenance as it was released from the British Postal Museum Archives in 2014. Prior to this it was stored in the museum archives in climate controlled vaults since being printed and is therefore in uncirculated mint condition.
SG Catalogue Value: £4,000.
