The ongoing ANR JCJC Itineris project (https://itineris.huma- num.fr/) focuses on the characterisation of Italic bronze craftsmanship by combining archaeometric, mathematical and computer modelling methods with social and archaeological approaches. The aim is to revise and model cultural interactions in Europe during the Early Iron Age. The Archaeometric approach (WP1) point to determine the chemical composition of raw materials, verify the possible existence of multiple active workshops and try to finding of copper supply sites. 12 copper-alloy objects helded in the Musée d'Archéologie nationale of Saint-Germain-en- Laye (MAN) and sampled in the framework of the DFG project Die Sitzbank von Hochdorf (Modarressi-Tehrani 2021) were selected. 20 other objects also held in the MAN will be added to extend and consolidate this dataset and Isotopic data from the Chiusa Pesio hoard (Late Bronze Age, Venturino 2009) are also used to complete the archaeological, chronological and archeometric framework. The set is composed of fibulae and clothing items as belt, pin and armring attributed to the 7th and late 6th century BC and belonging to the Golasecca culture (Northwestern Italy), whose productions spread across the Alps in the Celtic area during the Early Iron Age (Cicolani 2017).