Canada 1942-48 War Effort 6c blue 'Air Mail', right marginal IMPERFORATE horizontal pair, SG399.
A fine quality unmounted mint imperforate pair with full original gum.
Very rare as only 50 imperforate pairs originally existed.
The designs of the pictorial Canada stamps first issued in 1942 represented Canada's contributions to the Allied war effort during World War II. This 6c Airmail stamp features Air Training Camp.
The Stanley Gibbons catalogue value is £1,000.