This flute, marked "M.tin Thibouville Ainé a Paris, breveté, SGDG", is a good example of the fine craftmanship of the parisian flute makers in the Paris of the second half of the XIX century. The flute is in good condition, ane hairline wrinkle not affecting sound, A 432, weight 540 g. The tap is damaged but the screw is working. Very nice original case.