A special postcard rate was introduced in 1870, at which time preprinted postcards were also issued. These special rate remained in place until the 16 September 1968, when the two tier postage system was introduced. At this point postcards were sent by second class mail.

Charge                    Year

    ½d                     1870
    1d                      1918
    1½d                   1921
    1d                      1922
    2d                      1940
    2½d                   1957
    3d                      1965