- ???2018/6 - Photographs of E.Z. Co. Zinc Works at Risdon
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- ??31 - Derwent Prime furnace jacket assembled at E.Z. Co. Zinc Works
- ??32 - Horse and cart used in excavation of Derwent Prime furnace site at E.Z. Co. Zinc Works
- ??33 - Building foundations for Derwent Prime furnace at E.Z. Co. Zinc Works
- ??34 - Boxing for foundations of Derwent Prime furnace at E.Z. Co. Zinc Works
- ??35 - Framework for pouring concrete in the power station building at E.Z. Co. Zinc Works
- ??36 - Framework of roasting division building at E.Z. Co. Zinc Works at Risdon
- ??37 - Bricks stacked inside corrugated iron shed at E.Z. Co. Zinc Works at Risdon
- ??38 - Structure of power house takes shape at E.Z. Co. Zinc Works at Risdon 1921
- ??39 - Bricks and timber stacked near corrugated iron building at E.Z. Co. Zinc Works at Risdon
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