Specimen ½d. to £1 set of nine overprinted "SPECIMEN", mounted mint; the ½d. and 1d. with a few short perfs. S.G. 81-89, £325

Details
Specimen ½d. to £1 set of nine overprinted "SPECIMEN", mounted mint; the ½d. and 1d. with a few short perfs. S.G. 81-89, £325