07.28.2008 We continued removing the topsoil. A lot of irregular or isolated stones have been removed. In the topsoil a small flat artefact. The material is unknown (probably glass). The color is dark violet. One side presents a linear unknown sign with two ondulated lines. Today we also worked in T23 and we finished cleaning of the locus 17, 19 and 20. We didn’t reach the topsoil, but an sterile level with no material.