- N° d'objet6703.3.7
- TitreA training piece made by an apprentice
- DescriptionA training piece made by apprentice machinists at Chepstow. Steel irregular quadrilateral to fit above, marked '76' on one side.
- Date1963 - 1966
- Période de créationWindsor, 1910-
- Dimensions
- 47 mm
- Width: 31 mm
- Depth: 5 mm