Pair of bookends

A pair of bronze and marble bookends, both absolutely identical, with no stamp on the back. They consist of a small base in pink and black marble topped with a bronze figure representing a demon. Dimensions: total height 11cm, base 6.8 X 6.8cm, thickness of the base 2cm. Very good condition, except for a small abrasion on one of the bases, behind the demon (see photo). One of the demons can rotate on its base, but not the other.