How was this made?
This seal is made of lead, a metal which needed to be melted and put to dry to create the final product. While there have been countless seals produced throughout millennia, the process of creating a seal is still not evidently described. Nevertheless, whoever was making the seal would begin the process by pouring molten lead into two blank discs. It would then be left to dry until it was ready to be used.
On each side of the blank disc, there would be an empty channel that would let a string be tied into the document. The design would be engraved onto a pair of dies, a metal piece used to strike the seal. Then, a boulloterion, a type of iron pliers, would be used to hold the two dies with the images and inscriptions on them. After the boulloterion pressed the iconography on each disc, the empty channel described above would cave in and the seal and its imagery would remain.
