Jenkins-Lewis 402 13.35 g RBL Libyan hoard this coin With a gold-silver ratio 12:1 these electrum pieces (46-40 per cent gold) are equivalent with 10 silver shekels. Robinson (NC 1953 31) suggests that Jenkins-Lewis 402-403, which were among the contents of the Libyan hoard (hoard XIX), were perhaps a revival of the Group IX type by the rebels (241-237 BC).