bearing a vertical pair of 5c. on 8c. (lower stamp defective) cancelled by third type "S1" in black with the despatch c.d.s. alongside, the reverse with Ningpo company oval, Hong Kong and arrival c.d.s.; fresh and attractive. Photo" /> cover 1881 (8 Feb) envelope to Germany<I> "Pr Engl. Mail"</I> bearing a vertical pair of 5c. on 8c. (lower stamp defective) cancelled by third type "S1" in black with the despatch c.d.s. alongside, the reverse with Ningpo company oval, Hong Kong and arrival c.d.s.; fresh and attractive. Photo | Christie's