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| Title | Patent no 11767 | 
|---|---|
| Creator | Nasmyth Gaskell and Company | 
| Date of Creation | 12 Oct 1847 | 
| Description | Robert Wilson's patent for steam hammer improvements details, stamped 'London 12.10.47'. Details. Table relating to fig's not present. Sheet C. | 
| Archive Reference | NAS/1/17/2/1 | 
| Media | Ink and watercolour on paper | 
| Dimensions | 490x672 mm |