Oil on canvas neo classical fragment of decoration painted trompe l'oeil 19th

Oil on canvas. Fragment of neoclassical painted canvas greek revival acanthus leaves painted in trompe l'oeil. North-south annotations, measurements in cm and number. Support in very dense linen canvas. This is undoubtedly a sample of the decoration on canvas of a major project, a residence under napoleon 3. Prussian blue background. Exceptional.44cm X 35cm.