The jug is related to a group of small mould-blown jugs datable to the 9/10th century, each with pear-shaped body and beak-shaped moth and handle attached to the back of the mouth and to the body. All have a two-line inscription in kufi. Three bear the signature of the same glass-maker and four bear the signature of another glass-maker aswell as the place where they were made. Although the last is in no case complete the word can be read with some certainty as "Baghdad" (D.S. Rice, "Early Signed Islamic Glass", Journal of the Royal Asiatic Society, 1953, pp. ??).

Our ewer differs in the form of the mouth. And the kufic of the sinle-line inscription is a single line is similar to that of the others in the group. It is not entirely decipherible and reads: "al-mulk li'llah ... wa majd (?)". There is, however, no makers' signature.