31. The Bengal-Maldives cowry shell trade was the largest shell currency trade network in history. 32. Cowry shells were also widely used.33. Lengths range from 19 cm for the Atlantic deer cowry , " Macrocypraea cervus ". 34. The cowry 's smooth surface allows the needle to be positioned under the cloth more easily. 35. Its people conduct their buying and selling with cowries , like the people of Ml + . 36. The front area has Magimagi ( coconut fiber rope ) and cowry shells attached to the Magimagi. 37. Gold dust that weighed 4.6 grams was equivalent to 500 or 3, 000 cowries . 38. Cowry shells were among the devices used for divination by the Kaniyar Panicker astrologers of Kerala, India.39. Around her neck she wears a black ribbon with a white cowry shell on it ( puleoto ). 40. Movement is controlled by throwing cowry shells, but there is also an element of strategy to the game.