Proof Specimen  -- 2d. perforated in rose-red, a marginal pair from the top of the sheet, overprinted "SPECIMEN" (Type D17) omitted in pair with normal, fine. Very rare. Photo
Proof Specimen -- 2d. perforated in rose-red, a marginal pair from the top of the sheet, overprinted "SPECIMEN" (Type D17) omitted in pair with normal, fine. Very rare. Photo

Details
Proof Specimen -- 2d. perforated in rose-red, a marginal pair from the top of the sheet, overprinted "SPECIMEN" (Type D17) omitted in pair with normal, fine. Very rare. Photo