- ???2018/6 - Photographs of E.Z. Co. Zinc Works at Risdon
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- ??26 - Workers assembling jacket of Derwent Prime furnace at E.Z. Co. Zinc Works
- ??27 - Workers assembling base of furnace jacket at E.Z. Co. Zinc Works
- ??28 - Staging for Derwent Prime furnace jacket at E.Z. Co. Zinc Works
- ??29 - Excavation for Derwent Prime furnace at E.Z. Co. Zinc Works
- ??30 - Excavation work for construction of furnace at E.Z. Co. Zinc Works
- ??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
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