Hong Kong Treaty Ports Shanghai 1917 (July) envelope registered to Montgomery Ward in Chicago bearing "<H>china" 1c. and 25c. tied by Shanghai registered oval with a good strike of the boxed registered handstamp type R5 at foot with firms arrival c.d.s. (27.8); the reverse with four wax seals of the HSBC with Seattle (22.8) and Washington (26.8) c.d.s. A good cover. Photo