They followed this win with a second award - winning the London Kopparberg battle of the bands competition in July 2011.
13 July every year is a special day, commemorating the Treskilling Yellow stamp.
The Swedish copper mining company Stora Kopparberg ("great copper mountain") in Falun was granted a charter from King Magnus IV of Sweden in 1347, although the first share in the company (granting the Bishop of Västerås 12.5% ownership) dates from 1288.