Gainsborough Pink and Blue Flowers Vintage Bone China cup and saucer produced by Gainsborough in the 1960s.
I can't find much information on Gainsborough bone china perhaps because they were a small mid-priced maker who never reached the heady heights of collectablilty like say, Royal Albert or Aynsley.
They must have been based in Longton, Stoke-on-Trent, Staffordshire because their listing reads as follows:- "Gainsborough Works of Longton"