Old wooden top painted and pyroengraved after Boli

This old rectangular wooden top is the faithful representation of a painting by the alsatian painter boli (louis bollinger) describing a view of the roofs of the city of strasbourg with the notre dame cathedral in the distance and the storks, 40s. Painted top with a pyrograved border. A cleat on each side of the tray suggests that there must have been a glass to protect the paint which is in very good condition.