The image shows an old-fashioned mechanical instrument displayed in a glass case. The instrument appears to be a piano with a wooden top and black and white keys. On top of the piano, there are several gears and cogs, which are likely used to control the movement of the instrument. The gears are arranged in a circular pattern, with the largest gear at the top and the smallest at the bottom. The cogs are connected to the piano by a chain, which is likely used for playing the piano. In the background, there is a display case with other musical instruments and equipment. The display case is located in a museum or exhibition space, with other exhibits visible in the background.