A piece is soldered by a worker at the Topazio factory in Valbom, near Porto February 16, 2015. Topazio manufactures gold and silver products since it was founded in 1874 by Manuel Jose Ferreira Marques. With an annual production of about 60,000 units, the 2014 sales exceeded 3 million euros. Topazio currently exports to more than 20 countries, and is positioned as a leading brand within the European Silversmiths of premium products. REUTERS/Rafael Marchante (PORTUGAL - Tags: BUSINESS SOCIETY EMPLOYMENT INDUSTRIAL)