"Hong Kong/D.L.O.", "T" in inverted triangle and other c.d.s." /> cover UNCLAIMED: 1904 (24 Sep.) envelope from Singapore to Hong Kong with Straits 3c. on reverse tied by the despatch c.d.s., the front with two fine strikes of "ADVERTISED/UNCLAIMED", a readable strike of boxed<I> "Hong Kong</I>/D.L.O.", "T" in inverted triangle and other c.d.s. | Christie's