cover -- 1911 (March) XU5 (a few peripheral faults) to Tientsin (15.3 arrival) bearing K.E.VII ½a. cancelled "F.P.O.NO.1" showing alongside framed "Advertised (16.3.11 in manuscript)" and "Insufficiently Addressed" handstamps in black, together with manuscript "try J.P.O.", reverse with "BASE OFFICE/B" c.d.s.; rare. Photo