Definitive issue - pale colours 1941-1942
The dyes used to produce the colours were imported from Germany. When Great Britain was at war with Germany the import restrictions made it difficult to obtain these dyes, so less dye was used for each stamp. These stamps were used until 1951, and they also appeared with the sideways watermarks from coils or booklets.
New colours, 1951
Note that the 3d stayed the same colour.
Introduction
definitive stamps
Definitive stamps inverted watermarks
High Value stamps
Coil stamps and leaders
Sheet markings
stamps in booklets
Airletters
Commemorative issues
Overprints
