Details
cover 1893 (7 Oct.) opened out envelope registered to Boston bearing Koban 5s. strip of three tied by fair strikes of "I.J.P.O. SHANGHAI/MEIJI.26" c.d.s. with similar for Yokohama alongside with a good example of the "I.J.P.O./SHANGHAI" registration label type R.1 (early use of this), the reverse with Montreal and Boston d.s.