Brass rule
- Made:
- unknown place
Brass rule for measuring between internal faces from 6 1/2" to 12"and externally to 6"; date not known.
Details
- Category:
- Industrial Metrology
- Object Number:
- 1979-471
- Materials:
- brass
- Measurements:
-
overall: .4 x 17.5 x 1.5 cm
- type:
- measuring rule
- credit:
- Ballard, A.H.