This is a container with the following engraved text: "WILLIAMS CARLO SULMONA-ITALY" and "I. CONFETTI".

This marking indicates that the item was made by "Williams Carlo" and is associated with "Confetti," likely referring to a type of product or a family name, and was produced in Sulmona, Italy. Sulmona is known for its traditional production of "confetti," which are sugar-coated almonds often used for celebrations, particularly weddings.