A Peter Layton studio glass shell form bowl, later 20th century, the circular bowl base with off-centred sloping rim, with spirals of blue to the exterior and a stretched caramel interior, small windows of clear glass amidst the design, engraved signature to base, length 27.5cm. Note: this example is likely to be a prototype from the Giraffe range produced by Layton, for use as a lamp shade in the Giraffe Restaurants chain.