F : English text; Bank of England seal; King Charles III; coronation crown; computer chip circuitry; Bank of England headquarters, London; coats of arms; King Charles III.
B : English text; mathematical table and formulae from Turing’s seminal 1936 paper, “On Computable Numbers, with an application to the Entscheidungsproblem;” ticker tape depicting Alan Turing14’s birth date (23 June 1912) in binary code; technical drawings for the British Bombe; Automatic Computing Engine (ACE) Pilot Machine; Alan Turing
Sg 33 - Sarah John , Wmk : Shadow image
AJ Prefix
ACTUAL NOTE ON OFFER IS NOT SPECIMEN.
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