The main purpose of the experiment is to analyze structural properties and composition of different series of Celtic drachmas (mainly from Torino Antiquities Museums). We would get a higher statistics doing measures on similar samples of the RB1262010 and, moreover, on a very rare typology of the Celtic coinage (diobols and/or emi-drachmas). An higher statistic is of fundamental importance to obtain conclusive results. We expect to obtain compositional and structural information in order to make hypotheses about the production process in the ancient mints. The estimate of the average dimension of alpha and beta crystallographic phases will allow to understand the cooling method of blanks, while calculating the texture index could permit to trace the presence of a preferred orientation of crystallites within the lattice structure, which is usually common for struck metal blanks.