19th century iron in <a href="//commons.wikimedia.org/wiki/Piacenza" title="Piacenza">Piacenza</a>, Italy. Picture by <a href="//commons.wikimedia.org/wiki/User:G.dallorto" title="User:G.dallorto">Giovanni Dall'Orto</a>, July 14 2007.
<a href="//commons.wikimedia.org/wiki/User:G.dallorto" title="User:G.dallorto">G.dallorto</a>
Attribution
Self-published work by <a href="//commons.wikimedia.org/wiki/User:G.dallorto" title="User:G.dallorto">G.dallorto</a>