4th-5th century AD. A plumbata (or martiobarbuli) iron dart with barbed head and short shank, bulb of lead below the head. See discussion in Bishop, M.C. & Coulston, J.C.N., Roman Military Equipment From the Punic Wars to the Fall of Rome, London, 1993. 71 grams, 15.3cm (6"). From the collection of a European gentleman living in South London; acquired 1970-1980. Fine condition.