Smith's shop, Davy & United Engineering Co. Ltd., Park Iron Works, Sheffield: men are shown operating hydraulic presses, steam and pneumatic power hammers and gas fired furnaces. Photograph, 1957.
- Date:
- 1957
- Reference:
- 582440i
Licence: Public Domain Mark
Credit: Smith's shop, Davy & United Engineering Co. Ltd., Park Iron Works, Sheffield: men are shown operating hydraulic presses, steam and pneumatic power hammers and gas fired furnaces. Photograph, 1957. Source: Wellcome Collection.
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