"½. 1 + 4 Annas Ptd. 30 set", used as colour standards. Photo for three" /> Cancelled ½a. on 1d., 1a. on 2d., 4a. on 5d., each overprinted "CANCELLED", Samuel Type GB14; fine with much original gum; also Zululand 1d. and 2d. similarly overprinted on small piece, endorsed<I> "½. 1 + 4 Annas Ptd. 30 set"</I>, used as colour standards. Photo for three | Christie's