Occurrence of Attributes in Original Text

The text related to the cultural heritage 'Great Zimbabwe National Monument' has mentioned 'Ivory' in the following places:
Occurrence Sentence Text Source
[24] Other artefacts include soapstone figurines (one of which is in the British Museum[25]), pottery, iron gongs, elaborately worked ivory, iron and copper wire, iron hoes, bronze spearheads, copper ingots and crucibles, and gold beads, bracelets, pendants and sheaths.
[32] This international trade was mainly in gold and ivory; some estimates indicate that more than 20 million ounces of gold were extracted from the ground.