Copper-alloy and stone, 660 grams, 42 cm overall. Circa 3rd millennium BC. The broad blade with central raised rib and with integral square section hilt and quillon. Fitted with a heavy stone pommmel, secured to the hilt tang with a large bronze washer in the form of a stylized flower. Reference: see M. M. Khorasani, Arms & Armour from Iran, p. 54, fig. 4 for a similar example. Very fine condition, uncleaned with good patina.