The shells, containing small pebbles of various size, colour and quantity, were drilled with small holes, suggesting that each pair of them was tied together originally.
Cangkang-cangkang tersebut, yang berisi pebel-pebel kecil dari berbagai ukuran, warna dan kuantitas, dikeringkan pada lubang-lubang kecil, menandakan bahwa setiap pasang dari mereka aslinya dipasangkan bersamaan.