Catalogue entry no. 9 by Max Loehr:
9 Pi Disk
Disk fashioned from a rather thin slab of translucent, variegated light and dark green stone with light brown areas at opposite arcs. The circumference is strikingly irregular. The disk shows a radial crack, on each side of which are funnel-shaped drill-holes for a strengthening thong. The hole has a nearly circular, imperfectly polished wall. Neolithic or later(?).