New Hebrides 1908 1d red type 1 overprint on Fiji with error “overprint omitted”, SG2a.

A fine unused vertical pair, the lower stamp showing the error with overprint omitted.

A great rarity, with a maximum of just 12 pairs believed to exist, one of which resides in the Royal Philatelic Collection.

Accompanied by a 1980 British Philatelic Association (BPA) Certificate of Authenticity.

SG catalogue value: £10,000.