cover -- 1937 (10 Jan.) envelope to Shanghai bearing 1934-36 5f. cancelled by despatch c.d.s. with a second strike alongside, ink brush strokes obliterate part of the stamp, the Japanese c.d.s. and address; the cover bears a fine strike of boxed cachet, "This office pays for the postage this article which bears invalid stamps, Remittance and Transfer Office at Shanhaikwan" in violet, arrival c.d.s. on reverse. Chang 46-1-2