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„Art and Technology of bronze“
Monday 2nd June 2014 (Republic Day in Italy) the Terramara Park of Montale organised a special demonstration for public: „Art and
The model for the sword comes from the site of Castiglione di Marano (Modena), a type spread in Northern Italy during the Middle Bronze Age 2 (1550-1450 BC). The archaeological problem standing behind the production of these long and heavy swords, is that there is no evidence of moulds for this kind of artefacts.
So, how were they made? Due to the size of the sword, a sand mould and a big crucible were reproduced and then used. In the last two years the team has carried out some experiments with the sand applied to bronze age swords, beginning with smaller rapiers and then dealing with the longer swords.
During the day of demonstration, the visitors have watched the whole process: from the preparation of the sand mould to the pouring of the . Seven trials were made and then finally a good result has been obtained, demonstrating that this kind of technology is a good response to the lack of stone mould evidence.
The model for the stud’s stone mould comes from the site of Sant'Ambrogio (Modena), and dates back to the Middle Bronze 3 (1450-1350 BC) and the Recent Bronze Age (1350-1170 BC).
The original moulds is made out of biocalcarenite of Pantano Formation, a local lithology, whose source has been traced out approximately 20 km from the site.
The whole chaine operatoire has been led in front of the public, starting from a block of biocalcarenite, and took some hours of work. After the sketching out of the rock and the polishing of the surface, the circular form of the stud was produced using a kind of compass, made with two bronze points fixed on a small piece of . The inner form was then carved with a small chisel and a stone hammer. The visitors have experienced the use of the implements, working on another similar block of stone.
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