| A lighter of mine |
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| Safe lighting developed for coal mines (4,4) |
The Guardian Speedy |
24 Nov 2024 |
| Miner's illumination (4,4) |
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| Miner's safety light |
Mirror Tea Time |
11 Oct 2024 |
| Miner's safety light |
Irish Times Simplex |
14 Nov 2019 |
| Safety light used in coalmines |
The Telegraph General Knowledge |
22 Apr 2018 |
| First generally-used safety light in coal mines |
The Guardian Speedy |
11 Dec 2016 |
| Mining illumination |
The Guardian Speedy |
27 Nov 2016 |
| No night-light eclipses very old one used underground |
The Times Cryptic |
20 Mar 2015 |