Natal 1900 Field Force 2 cds, Colourful 1d Letter, Rare

NATAL: 1900 Cover to England bearing QV 1d tied by a superb bold strike (in violet) of the elusive NATAL FIELD FORCE 2 cds dated MAR 6 1900. Backstamped transit Pietermaritzburg and arrival cds. F-VF, rare, most attractive.