Which technique was used to create the Mask of Agamemnon?

The Mask of Agamemnon was created using the technique of goldsmithing, specifically the process of repousse. This method involves hammering gold sheet from the reverse side to create a raised design, allowing for intricate facial features and details. The mask dates back to the Mycenaean period, showcasing the advanced metalworking skills of the time. It was found in a burial site in Mycenae, Greece, and is often associated with the legendary King Agamemnon from Homer's epics.