This is part of the floor from the presbytery (area in early churches for the higher clergy) of an Early Christian basilica (4th-5th century A.D.). The basilica was discovered east of the Lavrion city limits on a hilltop above the sea. It was situated in an outstanding location, analogous to that of sanctuaries at Sounion. The central decoration of the mosaic consists of two communion goblets placed inside a circle and facing each other. Coiled branches and vine leaves, placed inside the circle, surround the goblets, while outside the circle the floor is decorated with a scale pattern and guilloches.