![](https://coimages.sciencemuseumgroup.org.uk/375/636/large_thumbnail_1928_0920__0001_.jpg)
Lummer-Brodhun type differential photometer by Alex.Wright & Co.
- Made:
- 1920-1959 in Westminster
- manufacturer:
- Alexander Wright and Company Limited
![Lummer-Brodhun type differential photometer by Alex.Wright & Co](https://coimages.sciencemuseumgroup.org.uk/377/210/medium_smg00085492.jpg)
Lummer-Brodhun type differential photometer by Alex.Wright & Co., Westminster, England
Lummer-Brodhun type differential photometer by Alex.Wright & Co., Westminster, England