A 11 LIMESTONE loads for SAR HS / AHSA hoppers 2 load packfor sixty years the "stony" delivered loads of limestone from the Barossa Valley to Osborne, for industrial use. Here are packs of loads to add to your HO scale trains. It adds some weight, makes the wagon look complete, and adds to enjoyment . The loads can be left in the wagon or removed to show the difference between loaded or unloaded trains.