This hooked metal tool was called a “strigil” by Ancient Romans. Centuries ago, such instruments were used in the process of bathing: you would scrape dirt, sweat, and the ubiquitous Mediterranean olive oil off your skin with it before your bath.
This is a 15th century aquamanile (pouring water vessel) representing the humiliation of Aristotle by Phyllis: a sort of “world-turned upside down” motif that actually…