used -- "Half/Penny" (Type 7) in violet on 2d. and "Half/Penny" (Type 7) in vermilion on 2½d., fine used. S.G. 20-21, £405

Details
used -- "Half/Penny" (Type 7) in violet on 2d. and "Half/Penny" (Type 7) in vermilion on 2½d., fine used. S.G. 20-21, £405