Y/B" c.d.s. (Proud DP1). Unusual" /> cover 1900 (14 Dec.) 1c. stationery card (small tear at foot) from Hong Kong to The Senior Transport Officer, C.E.F., cancelled by single ring d.s. and showing a good strike of the "BASE OFFICE" c.d.s. (Proud D2) and scarce "BASE OFFICE/DEL<V>Y/B" c.d.s. (Proud DP1). Unusual | Christie's