crotale

In contrast to the cymbals of beaten metal, the British Museum collection includes several pairs of cast crotales. Strictly speaking, crotales are metal castanets, resembling cymbals. A pair of bronze crotales (from Thebes c. 200 BC) with large central boss and upturned rim, measure 2⁷/₁₆ inches in diameter, a thickness of approximately ¹/₈ inch, and a weight of 1³/₄ ozs.