South Africa OFFICIAL 1944-50 'Set 23' (= 1949-50 issue) small format 2d blue and violet, SG type O6 overprint (reading upwards with 'OFFICIAL' at left and 16mm between lines of overprint), BLOCK OF 4, SGO35.
Exceptional quality multiple of this key King George VI rarity, unmounted mint with full original gum.
The error on this Government Official stamp is made more famous because of the early philatelic debate surrounding whether it was legitimately issued in error. It was ultimately, after much academic study, accepted as legitimate and has now become something of philatelic fame.
Accompanied with a British Philatelic Association (BPA) Certificate of Authenticity (1983).
The Stanley Gibbons catalogue value for a single example is £4,250.
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