Proof Specimen -- 10/- brown-red (2), one imperforate handstamped "SPECIMEN" (Type DS2), the other perforated and overprinted "SPECIMEN" (Type DS3), fine

Details
Proof Specimen -- 10/- brown-red (2), one imperforate handstamped "SPECIMEN" (Type DS2), the other perforated and overprinted "SPECIMEN" (Type DS3), fine