Specification of William Heap, Demus Sharp, and George Knowles : furnaces.
- Heap, William.
- Date:
- 1857
Licence: Public Domain Mark
Credit: Specification of William Heap, Demus Sharp, and George Knowles : furnaces. Source: Wellcome Collection.
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Licence: Public Domain Mark
Credit: Specification of William Heap, Demus Sharp, and George Knowles : furnaces. Source: Wellcome Collection.