The most important object kept in the Chapel of the Treasure is the great Monstrance of Arfe, also known as La Gran Ostensoria de Toledo. Arfe labored on it from 1517–1524, on commission to Cardinal Cisneros. It is of late Gothic design. This triumph of the silversmith's craft is in the form of a Gothic temple, with all the architectural details, such as columns, arches, and vaultings, the whole resembling a delicate lacework. Scenes from the life of the Saviour are illustrated in relief. It has two hundred and sixty statuettes of various sizes, all exhibiting the same skill in workmanship. The monstrance comprises 5,600 different pieces held together by 12,500 bolts and decorated with 260 figurines. Eighteen kilograms (39.7 pounds) of 18 karat gold and 183 kilograms (403 pounds) of pure silver were used in its fabrication; it is said to contain the first gold brought by Columbus from the New World.