Studio pottery sculptural clay flat vessel Ben Arnup style signed TW slab built

Wonderful sculptural flat slab built vase vessel made with interesting surface pattern (looks like it has been made using layers of stretched coloured clay, in the style of Ben Arnup but not directly attributed to him, I believe TW was one of his students ). Sourced in the North of England. Signed TW and numbered I think B4T. 20cms tall, 24cms wide, 7cms deep approx. The clay is about 6mm thick. Asymmetric shape and base. Glazed blue inside. Please see photos.

eBay