Letter Post
1 July 1885: 1oz was 1d, 2oz was 1 1/2d, and for every additional 2oz it was 1/2d
22 June 1897: 40oz was 1d, and for every additional 2oz it was 1 1/2d
Imperial Penny Postage
The rate for the then colonies of 1d was introduced on 25 December 1898
Postcards
Although postcards were introduced by the British Post Office in 1870, it was not until 1894 that permission was granted for the use of private postcards to which a stamp could be affixed, with the rate being 1/2d. The maximum size allowed was 5 1/2 x 3 1/2 inches.
Printed Papers
1 October 1870: For the Book Post, 2oz was 1/2d and for every additional 2oz up to 5lb it was 1/2d. Newspapers were 1/2d irrespective of weight
22 June 1897: For the Book Post, 2oz was 1/2d the maximum rate due to the change of the letter rate to 1d for 4oz
Express
Service 1: Sent by Post Office messenger all the way. Initially introduced in London and selected provincial towns on 25 March 1891, and extended to the whole country in August.
25 March 1891: 2d for the first mile, and 3d for each succeeding mile. An additional charge of 1s + ordinary postage was applied for distances over 2 miles where no public conveyance was available.
1892: Postage no longer levied but a weight charge of 1 1/2d per lb after the first lb was imposed.
July 1893: 3d per mile with a weight charge of 1 1/2d per lb after the first lb.
1898: Weight charge reduced to 1d per lb after the first lb.
1900: Weight charge abolished.
Service 2: Special Delivery at the request of the sender.
The 1887 Jubilee Issue 