A Negeretti and Zambra barothermograph temperature recorder, circa. 1935, in an ebonised metal case, a large clinometer by E.R. Watts & Son dated 1941
| Estimate: |
£100 - £150
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|
Hammer price:
|
£50 |
Bidding ended. Lot has been sold.
A Negeretti and Zambra barothermograph temperature recorder, circa. 1935, in an ebonised metal case, a large clinometer by E.R. Watts & Son dated 1941 in a fitted mahogany case, a Wheatstone bridge resistance instrument and part of a crystal set, (4).
