13th-15th century AD. A group of two square formed medieval glazed stone floor tiles: one with central lis within concave lozenge design, a lis at each of the four corners; one tile with four stylised lis designs arranged around a central lozenge. 1.9 kg total, 13 x 13 - 14.5 x 14.5cm (5 x 5 - 5 3/4 x 5 3/4"). Ex central London gallery; acquired on the UK art market. [2]