DS"; rare and unusual. Photo" /> cover 1911 (27 Dec.) <I>Barker</I> envelope registered to England, bearing 1909-16 2d. (2, one bisected vertically) and 1909 Dominion 1d., each cancelled with triple-ring "CHATHAM ISLANDS/N.Z" c.d.s. and with the registration label cancelled with circular undated "N-Z/CHATHAM ISL<V>D<V>S"; rare and unusual. Photo | Christie's