Mythological symbol of abundance, also called the horn of plenty
In classical antiquity, the cornucopia (; from Latin cornu 'horn' and copia 'abundance'), also called the horn of plenty, was a symbol of abundance and nourishment, commonly a large horn-shaped container overflowing with produce, flowers, or nuts. Baskets or panniers of this form were traditionally used in western Asia and Europe to hold and carry newly harvested food products. The horn-shaped basket would be worn on the back or slung around the torso, leaving the harvester's hands free for picking. In Greek/Roman mythology.
https://en.wikipedia.org/wiki/Cornucopia