cover F.3(b): 1938 (29 June) to Boston, U.S.A., complete with enclosure -- a list from the Post Office of stamps being supplied, bearing 1938-50 9d. additionally tied by Boston registered c.d.s.

Details
cover F.3(b): 1938 (29 June) to Boston, U.S.A., complete with enclosure -- a list from the Post Office of stamps being supplied, bearing 1938-50 9d. additionally tied by Boston registered c.d.s.