Unused on cover / entire letter PORT HOWE: 1925 Iremonger envelope registered to Bristol, bearing 2½d. pair with three fine strikes of the Type 3 c.d.s. and manuscript registration markings, and 1928 envelope registered to U.S.A., bearing 2½d. cancelled with superb Type 3 c.d.s. ("2" of year date inverted) and with registration label alongside