Brass protractor, British, 1941-1950
- modifier:
- Cooke, Troughton and Simms Limited
- maker:
- E. R. Watts and Son Limited
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Brass protractor, 24-inch, in wooden case, by E.R. Watts & Son Ltd, London, England, 1941-1950. Refurbished by Cooke, Troughton and Simms, marked HO16
