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A glass dīnār weight in the name of 'Abd al-'Azīz b. Marwān

In cataloguing the British Museum's collection of early Islamic glass stamps the writer was faced with a small disk with a brief inscription, a type of which two other specimens had already been published. The weights of these pieces, which lack any explicit indication of their purpose, showed that they belonged to the category of dīnār weights. The inscription that did exist had been variously interpreted, but not as containing a personal name. For reasons that are given below, the writer came to the conclusion that the word ‘abdallāh in the legend was a name, that it could only refer to the son of the Umayyad Caliph ‘Abd al-Malik b. Marwān and that the weights were produced in Egypt in ‘Abdallāh's name during the period when he was Governor there (A.H. 86–90/A.D. 705–9). ‘Abdallāh's dīnārnar weights thus became the earliest known coin weights in the great corpus of glass metrological stamps issued in Umayyad and early ‘Abbāsid Egypt, preceding those of the next Governor, Qurra b. Sharīk, which had long maintained their place at the beginning of the coin weight series. The British Museum's piece could therefore be given pride of place in the catalogue as No. 1.