Floor surface (or preparation for a surface of kind) that clearly extended over the the S. part of room C9, part of room C1, and part of the E. courtyard but has been truncated by numerous later activities. It is unclear at this point what this surface was associated with.
Crushed yellow tufo layer in the lower portion of room C9.
Crushed yellow tufo in south part of c9; north of wall 2239, east of wall 2245.