Tiles removed 9.7.15. Highly degraded.
A series of imbrex tiles used to line the feed to the cistern sitting in a mortar lining (SU 2363). It used to be covered by a series of imbrex tiles, based on the number of additional imbrex fragments excavated in the fill (2365), including one fragment that appeared to be somewhat in situ as a cover at the mouth of the feed into the cistern. (See PM #331)
Drain without cover