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HEPHAISTOS, the smith god, is typically depicted as a grave, intense man wearing a workman's cap and immersed in his fiery craft. He had forges beneath volcanoes but also on Olympus where 20 bellows worked at his bidding. Famed for his artistry, he crafted works of wonder, such as Achilles' shield, embossed with a dramatic scene of life, and death, joy and grief, peace and war.

The Encyclopedia Of Mythology, Arthur Cotterell, p 69