This is a Wonderful Denby Stoneware Beverage Carafe; a water pitcher or possibly teapot/coffee pot. Beautiful Blue color, kind of turquoise to sky blue over white with with black lines and white dots. It is ringed in the middle where the decoration is. Wonderful form, with large round loop handle.
It measures 8" across x 7 1/2" high with the lid(7" w/o) It is marked Denby Stoneware Made in England and has an incised M. It is in Very Good condition, no chips or cracks.
Mid Century Denby England Pottery Covered Pitcher Carafe