Four tuning forks, c 1841-1930.

 
Four tuning forks, c 1841-1930.
4 0 c m
 
29cm
actual image size: 21cm x 32cm

Description

Tuning forks invented by Gardiner Brown. Left to right: (1) made by Arnold and Sons, England, c 1851-1895; (2) English?, made c 1841-1920; (3) posibly of Brown's type, but was the personal relic of F T Burkitt, and made by Lewis of London, c 1901-1930; (4) made by Down Bros, England, c 1874-1900.

© Science Museum / Science & Society Picture Library

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