![](https://coimages.sciencemuseumgroup.org.uk/74/294/large_thumbnail_1990_0459__0002_.jpg)
Twelve-Inch Ruler
- Made:
- 1930-1940
![Twelve-Inch Ruler](https://coimages.sciencemuseumgroup.org.uk/477/296/small_thumbnail_smg00246634.jpg)
![Twelve-inch ruler, c.1935.
Photographed on a white background.](https://coimages.sciencemuseumgroup.org.uk/234/518/small_thumbnail_cd0210_019_060504_hb049_2001_264_slide_rule.jpg)
Twelve-inch ruler, c.1935.
Details
- Category:
- Mathematics
- Object Number:
- Y2001.264
- Materials:
- metal (unknown) and plastic (unidentified)
- Measurements:
-
overall: 15 mm x 300 mm x 34 mm,
- type:
- ruler