Japan. (Hong Kong). 1940. Registered Air Mail envelope addressed to Sussex bearing Japan SG 305, 20s (blue), SG 322, 10s carmine (3) and SG 327, 30s turquoise (10) tied by Kobe date stamp with matching registration label with framed 'Air Mail via Hong Kong' hand-stamp in red and triangular 'Passed Censor/ 13/ Hong Kong' on face in blue green with Hong Kong transit and Sussex arrival. Lovely franking.