- Object number6703.3.3
- TitleA training piece made by an apprentice
- DescriptionA training piece made by apprentice machinists at Chepstow. Steel block , drilled through centre, bore. One half has lateral and transverse keyway cut to take square lug or with knurled (?) head. Bolt head marked 'FM 86', and its end marked '280'. The main block marked 'Monaghan'.
- Date1963 - 1966
- Dimensions
- 80 mm
- Width: 39 mm
- Depth: 39 mm