The history of the Mesopotamian “toggle-pin” has recently been traced in all possible detail, from its first emergence as a kind of safety-pin designed to fasten clothing, to its later replacement by the fibula. Its secondary role as a mount for cylinder seals is confirmed, but its native name is identified as búr in Sumerian and tudittu in Akkadian, rather than as bulug and pulukku respctively, as in my article. See Harold Klein, “Tudittum,” Zeitschrift für Assyriologie 73 (1983), pp. 255–284.