Proof Specimen Block of Four ½d. in purple and blue, a block of four each overprinted "SPECIMEN", affixed to brown card (78x81mm.) numbered "110", fine. B.P.A. Certificate (1988) | Christie's

Lot 437

437

Proof Specimen Block of Four ½d. in purple and blue, a block of four each overprinted "SPECIMEN", affixed to brown card (78x81mm.) numbered "110", fine. B.P.A. Certificate (1988)

Details

Proof Specimen Block of Four ½d. in purple and blue, a block of four each overprinted "SPECIMEN", affixed to brown card (78x81mm.) numbered "110", fine. B.P.A. Certificate (1988)