![](https://coimages.sciencemuseumgroup.org.uk/434/905/large_thumbnail_smg00155379.jpg)
Safety lamp (part)
Safety lamp (part), facsimile of perforated maetal cage from Davy's experiments 1815, maker: Science Museum Workshops, 1938
Safety lamp (part), facsimile of perforated maetal cage from Davy's experiments 1815, maker: Science Museum Workshops, 1938