Found this in my grandma’s dresser after she pαssed. None of us have a clue what it is. Check the first comment for the answer

The mysterious object is a Victorian-era leg-of-lamb holder, also called a manche à gigot. Its purpose was practical: to steady a roast while the host carved portions at the table. The gripping mechanism and adjustable screw secured the joint, while the decorative handle gave the carver control. In late nineteenth- and early twentieth-century formal dining, such a tool helped turn an awkward task into a composed performance before assembled guests.