1910 (5 May) envelope registered to Charlottenburg bearing 4c. on 10pf. and 10c. on 20pf. tied by good strike of the code "c" dated oval in bluish violet and straight-line "Dampter MEI LEE", bearing the Hankow registration label and c.d.s. with the arrival backstamp; also examples of "a", "b" and "d" ovals showing the earilest recorded dates of each making a fine and desirable group