Selected metal artifacts and slag from the small-scale Umayyad-period metallurgical workshop uncovered in Givʻati Parking Lot were subjected to chemical and Lead Isotope Analysis. Based on the homogeneous lead isotopic composition of the objects, it was concluded that they were mass-produced during the Byzantine period, using lead from a single source, possibly in Britain or in France. The activity in the workshop included the remelting of older Byzantine-period cultic paraphernalia to form new objects.