Proof Specimen Block of Four 6d. blue block of four backed on card, each overprinted "SPECIMEN." in carmine vertically, fine | Christie's

拍品 151

151

Proof Specimen Block of Four 6d. blue block of four backed on card, each overprinted "SPECIMEN." in carmine vertically, fine

細節

Proof Specimen Block of Four 6d. blue block of four backed on card, each overprinted "SPECIMEN." in carmine vertically, fine