Although items hand-plated with metal leaf date back to ancient times, large scale production dates to 1742 when Thomas Boulsover, of Sheffield, England developed a process by which silver plates were fused to base metal (generally copper) ingots by heating them in a furnace with borax.
On 5 October 2004, President Mamadou Tandja announced the official opening of the Samira Hill Gold Mine, and the first Nigerien gold ingot was presented to him.
1287(Kōan10th) The territory Takaoka-mura, Enya-no-sato, Izumo Province, ingot was succeeded among his father Yasukiyo's inheritances.
Sycee, also known as Yuanbao, a type of silver or gold ingot currency used in China until the 20th century