Copper Hoard Culture, Uttar Pradesh, Northern India, mid-2nd millennium BC. A substantial bronze spearhead or harpoon with thick midrib, triangular barbed blade, three pairs of lateral barbs above a round-section tang with lateral piercing. See Yule, P. The Bronze Age Metalwork of India, PrÃ¤historische Bronzefunde XX, MÃ¼nchen, 1985 for discussion.475 grams, 25cm (9 3/4"). Property of a West London gentleman; previously in an important weapons collection formed in the 1980s and early 1990s. Some Copper Hoard items have been assigned a ritual rather than practical function (Yule: 1985").