Heavy round vase with cased blue layer and black spiral.
The bowl has a label on the base with the numbers 668/135 implying it's a limited edition piece. The writing style looks British rather than Continental.
Approx. 13cm diameter.
Picked it up at a car boot sale and owner said she'd bought it 5-10 years ago from a large department store in town. The store is like an independant John Lewis, and sells glass by companies such as Caithness, Dartington, Stuart, Waterford, etc, rather than Chinese imports.
Any ideas of the maker?