Great Britain 1970 5d Anniversaries "Declaration of Arbroath 1320" error, SG819a.
A superb unmounted mint, with full original gum, vertical pair with the bottom example showing error of missing colour, gold, (Queen's head) omitted.
A rare QEII missing head error. Pierron records only 19 mint examples.
Particularly desirable in a vertical pair with the normal stamp above, providing an immediate comparison of the dramatic error.
Current SG Catalogue Value: £150. Previously catalogued at £4,250, suggesting that the present £150 valuation must be a catalogue anomaly.