In 2018, in the outline of an insula (neighbourhood) in Marcianopolis, one lead dovule (lead seal for official correspondence) and one lead seal were found. Molybdobulum was found in the fill of a late antique pit. Its shape is closer to an ellipse than to a circle, which is why it did not fit the entire impression of the bulotherion, and so part of the inscription, which should have been on the left on the obverse, was not printed. On its obverse, Emperor Justinian I is depicted with the insignia typical of his images. The portrait image on the print is distinguished by high precision. The molybdobulum is evidence of the existence of official correspondence between the imperial office and a state official in the capital of Second Mysia - Marcianople. The seal is conical in shape, with a narrow hole drilled through its back for threading a string. On the obverse side of the seal are two profile busts facing each other. Such seals are not rare and are often associated with ruling couples or co-rulers, but examples of a private nature are also found. The seal certified that the export duty due had been paid. She arrived in Marcianople with some goods, in a sealed form, for sale and is evidence of a developed commercial activity.

Literature: Kuzov, Hristov 2020: Hr. Kuzov, M. Hristov. Two archaeological monuments of sfragistics from Marcianopolis. - News of the National Museum - Varna, 47 (62), 2020, 239-248.