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  • 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"

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