envelope to Shanghai bearing "CHINA" $2 tied by Ningpo c.d.s. and a smudged strike of the rare boxed B.P.O. h.s. Photo" /> cover 1922 (15 Nov.) printed<I> "Diercking"</I> envelope to Shanghai bearing "CHINA" $2 tied by Ningpo c.d.s. and a smudged strike of the rare boxed B.P.O. h.s. Photo | Christie's