An old antique piano that works by air pressure

‏A wooden piano that operates by air pressure, said to be over twenty years old, entirely made of wood, with an air bag manually compressed to produce sound. It requires simple maintenance such as cleaning and tightening screws. It currently works well, but with maintenance, its sound and performance improve. Whoever needs it in a museum in Tabuk, like Sultanah Museum, can bid on it. Men of integrity, we don't argue with them