Archaeological research in the Fontino cave in the north of Tuscia brought to the discovery of several eneolithic metal copper based artefacts as knives, awls and rivets (4000 BC). Eneolithic or Chalcolitic Age is the intermediate period between the last stone age (Neolithic) and the full development of metallurgy characterized by the use of bronze (Bronze Age) and is a period in which the borning metalolurgy industry brought to the development of many complex even if rough metal alloys based on copper as copper-arsenic, copper-antimony and copper-lead. The proposed experiment is focussed on three different types of copper or copper alloy samples: two knife fragments with different morphology, an awl and a rivet. The samples have been chosen in order to comprehend both cast and hammered samples. In this way it will be possible to obtain information on working techniques.