![](https://coimages.sciencemuseumgroup.org.uk/53/959/large_thumbnail_1876_1260__0001_.jpg)
McNaughts' steam engine indicator 0.25 sq. ins. made by Messrs. Chadburn Bros
- maker:
- Chadburn Bros.
![SMG00021634](https://coimages.sciencemuseumgroup.org.uk/441/201/small_thumbnail_smg00021634.jpg)
![McNaughts' steam engine indicator 0.25 sq. ins. made by Messrs](https://coimages.sciencemuseumgroup.org.uk/302/767/small_thumbnail_smg00021634.jpg)
McNaughts' steam engine indicator 0.25 sq. ins. made by Messrs. Chadburn Bros, in wood box
McNaughts' steam engine indicator 0.25 sq. ins. made by Messrs. Chadburn Bros, in wood box