| Ref No | DM1306/11/1/1/folio 156 |
| Title | Letter from Isambard Kingdom Brunel to John Scott Russell and Henry Wollaston Blake |
| Description | Written from 18 Duke Street, London. The letter asks various questions about the differences in fuel and power efficiency for a steam engine under various conditions of steam pressure or cylinder fullness. |
| Date | 20 May 1853 |
| Format | Manuscript volume |
| Extent | 1 page |
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| Access Conditions | This material is held at the Brunel Institute - please contact the Brunel Institute to arrange access. |