This paper presents national and regional time-series estimates of metalmaking production in post-Unification Italy. The former broadly confirm their immediate predecessors; the latter are altogether new. The regional series evidence the industry's geographic concentration: the significant producers were Piedmont, Liguria, Lombardy, Tuscany, Umbria, and Campania, but production per capita significantly exceeded the national average only in Liguria and, in the later years, in Umbria and Tuscany