Description: A lot of 20 "melon"shaped shell trade bead.Original,ancient,hand cutting,carving,boring and grinding.Its colour is original,natural one.No trace of dying at a later period.It has been cleaned in a tumbler.The holes are ancient,hand-made,irregular,funnel-shaped.The nice ancient patina is preserved.See micro photos!The pieces have been checked and tested in laboratory.Tibet or Nepal,19th century or older.