This decorative purse closure feeds a strap through the loop as an easy way to close a pouch. It consists of two pieces, one attached to the pouch and the other to the flap.
This fastener is modelled after one found at a Hungarian site and currently held at the Egri museum. It is dated to the 10th century.
You can read more about the Hungarian examples here: https://arpad.abtk.hu/images/aktualis/2019/014_het/ReveszL_Tarsoly.pdf
