The Tokyo National Museum has two strange-shaped bronze objects of the Yayoi period. One is composed of four arrowheads connected in series, and the other of six connected arrowhead-like objects. The length and the weight of the former are ca. 16.5 cm, and 20.5 g, and those of the latter are 23 cm and 25 g, respectively. Fluorescence x-ray analysis showed the chemical composition of the former to be Sn 6-10, Pb 20-50, and Cu 40-70%, and that of the latter Sn 6-10, Pb 40-60%, Cu 35-50%. The locality of these objects excavated is only known to be the Omi Province. The author concluded these objects to be arrowheads cast in the connected state. -- AATA