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| Title | Elevations |
|---|---|
| Creator | Nasmyth Gaskell and Company |
| Date of Creation | 1843 |
| Description | Front and side, J Nasmyth's self-acting hammer. Drawing roll no 27; then drawing roll 87 no 63; then stamped drawing roll 52 no 63. Signed by James Nasmyth. In 1843 a dispute broke out between Nasmyth and François Bourdon over priority of invention of the steam hammer. |
| Archive Reference | NAS/1/17/2/2 |
| Media | Hectograph on paper |
| Dimensions | 322x415 mm |