 |  | 10322394 Timothy Hackworth, c 1830s. Hackworth (1786 | |
|  |  | 10326432 Timothy Hackworth, locomotive engineer, 1825. | |
|  |  | 10284198 Sketch of a spring-loaded safety valve from Hackworth's note-book, 1827-1828. | |
|  |  | 10424027 Timothy Hackworth, British locomotive engineer, c 1830s. | |
|  |  | 10301782 Trade card of Timothy Hackworth Engine Builders, Brass Founder etc., 1830. | |
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