Earthenware pot cover from luneville, keller and guérin year 1920 - art nouveau

Magnificent earthenware pot cover from luneville, keller and guérin dating from about 1920, art nouveau style. Its base starts from a prussian blue and rises in finesse towards a pastel blue. It presents on its 2 sides blue oak leaves surrounded by golden paint and golden tassels, painted by hand. On the curves of the top, we find fine lines of golden paint. It has two handles on each side. On the underside, it is stamped k&g lunéville france and is numbered 121. Exceptional condition.