This Mason's for Crabtree & Evelyn London  two piece chamber washing set comprising large water jug and large personal wash bowl is a rare find, because Mason’s line for Crabtree and Evelyn has been discontinued. 
The set features a beautiful blue and white rose pattern. The pitcher has a generous capacity of 80 oz, is easy to fill.
I’d add these to my vaisselier and use it as part of service for salads, and water at the table.  Also perfect for decor.
Small repair on bowl, see photo.
Pitcher 8 1/2” tall
Bowl 10” diameter