, bearing 1892 white paper 1d. (defective at left) and 1½d., both cancelled by "COOK ISLANDS/P.O./RAROTONGA" h.s. (Type A2) in black with another strike alongside and showing, on reverse, Auckland (14 Apr.) and London (26 May) transit c.d.s.; the U5 with some light overall discoloration. A rare franking. Photo" /> U5 1893 (7 Apr.) commercial U5 to Hamburg, marked <I>"Via Auckland NZ"</I>, bearing 1892 white paper 1d. (defective at left) and 1½d., both cancelled by "COOK ISLANDS/P.O./RAROTONGA" h.s. (Type A2) in black with another strike alongside and showing, on reverse, Auckland (14 Apr.) and London (26 May) transit c.d.s.; the U5 with some light overall discoloration. A rare franking. Photo | Christie's