Cross-section showing the south side of the passageway.
The carvers responsible for this project must have worked standing or crouching close to the surface of the stone and there would have been real danger of them getting chips in their eyes. On this point Peter Rockwell notes that before the introduction of safety glasses at Carrara relatively recently it was very common for carvers to have to have chips removed from their eyes regularly. Whether some form of safety eyewear was used in the Roman period, in the form of gauze tied around the head, is unknown.
