Sami embroidery with pewter wire on reindeer leather has been done for hundreds of years in the Sami culture, and Sami actually invented the spun pewter wire. In the old days, they melted tin to make the wire by hand. Today, the wires are spun on a small machine. The pewter wire is an alloy with 4% silver. The pewter wire is sewn on to soft vegetable-tanned reindeer leather. The button is handmade of shed reindeer antler.