Laboratories
Vacuum gauge
- Ref. No: SA/BL/4/14
- Format: Object
- Date: [late 20th century]
- Level: Item
- Extent: 2 items
- Access: Open
Round metal vacuum gauge with a reader dial encased in glass containing a needle and measurements from 0 to 30 in units of 5. Held in a round metal case which also contains two metal keys for the gauge
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Circular calculator wheel used to calculate readings from the B.F.M.R.A patent vacuum gauge. Consists of a white plastic base disc with two sets of black and red numerical markings, one inside the other, and a clear plastic rotational disc with black numerical makings attached by a central metal eyelet. The eyelet also holds a plastic pointer. Held in a metal case along with SA/BL/4/15
Vacuum gauge calculator
SA/BL/4/15
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