- Mechanical strain gauge
- Used as an accurate way of taking strain measurements at different points
- Dial marked W. H. Mayes & Son (Windsor) Ltd, John Bull British Indicators Ltd
- 2P .0001"
- Fully jewelled
- Comes in original good quality, wooden box
- See photos for condition
Boxed John Bull Mechanical Strain Gauge - 2P .0001"
£35.00Price