![](https://coimages.sciencemuseumgroup.org.uk/74/294/large_thumbnail_1990_0459__0002_.jpg)
Folding rule
- Made:
- 1885-1895 in Manchester
- maker:
- A G Thornton Limited
![Folding rule](https://coimages.sciencemuseumgroup.org.uk/476/707/small_thumbnail_smg00245789.jpg)
![Folding rule](https://coimages.sciencemuseumgroup.org.uk/247/779/small_thumbnail_cd0086_017_050301_ms_1992_48_thorton_folding_rule.jpg)
![Folding rule](https://coimages.sciencemuseumgroup.org.uk/247/780/small_thumbnail_cd0086_018_050301_ms_1992_48_thorton_folding_rule.jpg)
12-inch ivory folding rule, made by A.G. Thornton Ltd, Manchester.
Details
- Category:
- Mathematics
- Object Number:
- Y1992.48
- Materials:
- ivory and copper (metal)
- Measurements:
-
overall (open): 8 mm x 304 mm, 21 g
- type:
- ruler
- credit:
- Purchased From Biddle and Webb