Valve pistons. 18 Mar. 1875
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- Bookmark:http://archiveshub.jisc.ac.uk/data/gb216-d/dnai/d/dnai/m/243/9
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- ReferenceGB 216 D/D NAI/M/243/9
- Dates of Creation18 Mar. 1875
- Language of MaterialEnglish
- Physical Description1 plan