Steel centre gauge
- Made:
- Sheffield
Steel centre gauge, Whitworth standard 55 degree angles. Pattern no. 878, and steel centre gauge, U.S. standard angle, 60 degrees pattern no. 879, both mounted together on a display board (see 2 stroke nos).
Details
- Category:
- Industrial Metrology
- Object Number:
- 1919-255
- Materials:
- steel (metal)
- type:
- thread gauge