Myott Son & Co

[Margaret]

I have inherited a Wash Bowl/Jug/Chamber Pot Set.  It has the mark of Myott Son and Co, Brighton England below a crown, and the words Imperial Semi-Porcelain above the crown.  The items have a white backgroun with a design of flowers in brown, pink and yellow.  Any inofrmation as to the age and value would be appreciated.
Margaret. England.