cover -- 1898 XU5 (opened-out for display) to London, bearing Hong Kong 5c. blue pair tied by "SHANGHAE" c.d.s. (14 May) on front with good strike of the blue double-ring "TIENTSIN" c.d.s. with "CUSTOMS" removed (10 May) adjacent, bearing Imperial Chinese Post 5c. pair on reverse with blue "Pak-Kua" cancellation and tied by Shanghai dollar chop, traces of soiling but otherwise fine. Photo