Proof Specimen Block of Four 1922 (c.) 1d. blue imperforate printer's sample block of four each overprinted "SPECIMEN", affixed to piece of brown card numbered "126", fine, and a single in green with vertical crease

細節
Proof Specimen Block of Four 1922 (c.) 1d. blue imperforate printer's sample block of four each overprinted "SPECIMEN", affixed to piece of brown card numbered "126", fine, and a single in green with vertical crease