(2)In the carriage of registered luggage and of goods, the liability of the carrier is limited to a sum of 250 francs per kilogramme, unless the consignor has made, at the time when the package was handed over to the carrier, a special declaration of the value at delivery and has paid a supplementary sum if the case so requires. In that case, the carrier will be liable to pay a sum not exceeding the declared sum, unless he proves that that sum is greater than the actual value to the consignor at delivery.
