- Object number6703.3.12
- TitleA training piece made by an apprentice
- DescriptionA training piece made by apprentice machinists at Chepstow. Single calipers made from square steel with tapered ends. Two screws long with knurled ends. Marked 'T.E.R. MONAGHAN 76'.
- Date1963 - 1966
- Dimensions
- 98 mm
- Width: 72 mm
- Depth: 11 mm