![](https://coimages.sciencemuseumgroup.org.uk/63/905/large_thumbnail_l2014_4184__0002_.jpg)
Brass pillar-frame sextant.
- Made:
- 1826-1870 in Fleet Street
- maker:
- Troughton and Simms Limited
![Brass pillar framed (straight bars) sextant with wooden handle](https://coimages.sciencemuseumgroup.org.uk/366/573/medium_smg00017213.jpg)
Brass pillar framed (straight bars) sextant with wooden handle, by Troughton and Simms, London, England, 1826-1870. Consists of four filter shades, tangent and clamping screws on the rear of the index arm, scale magnifier on swivel arm and threaded bracket for viewing telescope.