China. (Hong Kong). 1899. Envelope addressed to Liverpool bearing Chinese Imperial Post SG 113, 10c green tied by 'Pa Kua' obliterator in blue (on reverse) with Imperial Post Tientsin date stamp '27th May', routed via Shanghai with Imperial Post transit 'May 30', bearing Hong Kong SG 38, 10c purple/ red tied by Shanghai date stamp '31st May', with framed 'I.P.O. in blue and Liverpool arrival 'July 10'.
Cover a little roughly opened but a very attractive combination with use of the Tientsin 1st type 'I.P.O.' (Imperial Post Office).