This is a cute little open sugar bowl from the Boo Boo Series of tea wares. It dates to the 1920s and was made by Shelley Pottery.
It is based on the quirky fairy / children's nursery designs by Mabel Lucie Attwell. This is the little sugar bowl that takes the form of a red-spotted mushroom.
This is in excellent vintage condition with no damages. Any white flashes on the image - are no on the pot - but are reflections from the very glossy glaze.
It measures 3 3/4 inches in height - with a diameter at the widest point of about 4 inches. The diameter at the top measures 2 1/2 inches.