Machine divided steel rule 12" long pattern
Machine divided steel rule 12" long pattern, no. 412D mounted on common board with /2, /3 and /4
- Measurements:
-
board dimensions: 6.1024 x 14.5669 x .3937 in.; 15.5 x 37 x 1 cm
- Materials:
- steel (metal)
- Object Number:
- 1919-253/1
- type:
- steel rule
- Image ©
- The Board of Trustees of the Science Museum