The set of five overprinted "SPECIMEN", mint and used with additional 1d. (2), 3d., 5d. and 3/- mint blocks of four; fine. S.G. 126-130, £536

Details
The set of five overprinted "SPECIMEN", mint and used with additional 1d. (2), 3d., 5d. and 3/- mint blocks of four; fine. S.G. 126-130, £536