Great Britain 1958 2s6d-£1 "Castles" imprimaturs, SG536/9avar

GREAT BRITAIN 1958 2s6d-£1 "Castles" imprimaturs (1st De La Rue printing), SG536/9avar.

A superb unmounted mint, with full original gum, left hand marginal imperforate imprimatur set of four, each with a "BPMA" handstamp on reverse.

A very scarce set of imprimaturs from the first approved printing sheet.

One of the most popular QEII stamp issues featuring the most famous castles across the United Kingdom:

2s6d black-brown - Carrickfergus Castle, Northern Ireland

5s rose-carmine - Caernarvon Castle, Wales

10s ultramarine - Edinburgh Castle, Scotland

£1 black - Windsor Castle, England

Exceptional provenance as they were released from the British Postal Museum Archives in 2014. Prior to this they were stored in the museum archives in climate controlled vaults since being printed and are therefore in uncirculated mint condition.

Stanley Gibbons value: £20,000.

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