Stock Photo - Europe, Spain, Santiago de Compostela, cathedral, church. The Botafumeiro is suspended from a pulley mechanism in the dome on the roof of the church . The current pulley mechanism was installed in 1604. The present Botafumeiro is made of an alloy of brass and bronze and is plated by a very thin 20 micrometre layer of silver. The current Botafumeiro was created by the gold and silversmith José Losada in 1851. It has a golden sheen. Silver censer, The Santiago de Compostela Botafumeiro is one of the largest censers in the world, weighing 80 kg, and measuring 1.60 m in height. It is normally on exhibition in the library of the cathedral, but during certain important religious occasions it is brought to the floor of the cathedral and attached to ropes hung from the pulley mechanism.