The famous Iron Age discovery site at Col de Flam contains a number of weapons and tools as well as various objects for adorning the person, which were used in rituals. Alongside bronze bracelets, rings and a bead, there are numerous fastening clasps for clothing made of bronze and iron. They have been dated back to 400 to 15th century B.C. according to their decorative features and shapes.

This fully preserved bronze clasp shaped like a crossbow is a chance discovery on the slopes of the Denti di Terra Rossa. The bow part is decorated with parallel notches, and its fastening ends in a knot. In ancient times, clasps were used to fasten clothing and were precursors of brooches and buttons. They are divided into lots of different types that are characteristic of certain cultures and eras. Some are for women, some for men.