China - Stone Cowrie with large cavity

T. P. Collection. This is an unusual variety with a single slit hole at the bottom of a large cavity, the stone here is a softer type, probably stained limestone. It's 27.8 X 20.5 mm and 5.7 g. A distinctive variety, somewhat realistic carving of shell, one reverse hole 10 mm; transverse slits carved asymmetrically, not simply straight across which is typical for carved cowrie.