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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