 Smaller objects include a wheel @-@ turned <unk> ceramic , a few <unk> figurines , shell beads , gems , gold , <unk> , iron nails , copper percussion <unk> , red fragment of a Roman lamp shade , an engraved emblem of emperor Augustus , an ivory handle , and a wooden toy boat . Based on these antiquities Wheeler concluded that the Arikamedu was a Greek ( <unk> ) trading station . However , recent excavations by Begley have altered this assessment . 
