Details
cover ½d. and 2½d. strip of three on 1889 (23 Sept.) envelope, and 1d. (2) and 6d. on 1890 (5 Apr.) envelope, both addressed to USA. A fine pair of covers illustrating the 8d. double rate
Further details
Note: The rate to USA was reduced from 6d. per ½oz. to 4d. per ½oz. on 1st July 1884 and to 2½d. per ½oz. on 1st August 1892.