A gold wire passes through the history of Sardinia, from the time of the ancient Phoenician colonies up to our days in the shape of the most refined Sardinian jeweller's art: the filigree. This particular metal-working has achieved so high levels of refinement and beauty that no one can deny a millenarian experience transmitted through the centuries. Indeed, the great number of gold filigree jewels found in archeological excavations in Kàralis, Nora, Sulci, Neàpolis, Tharros and Cornus show us how ancient is this metal-working. It is also difficult to recognize the ancient shapes among all the symbols coming from the most different cultural influences, among all the contaminations of foreigner dominations followed one upon the other in Sardinia. Probably the most typical jewel, the double capped button, preserves more than any other a deep ethnic meaning. This jewel, which is either part of woman's traditional costume or of man's one, shows an archaic and aesthetic purity and, perhaps, its stylized reproduction of female breast recalls the ancient well wishing symbols of fertility and procreation related to Tanit, the Phoenician goddess.