HALSE, E., AND SON |
England, 18th Century, MIM |
Sector, wood = WRAY; Sector, ivory = ADL-W116; Drawing Instrument Sets in etuis = Soth. 7/20/70, Newcastle Science and Engineering Museum. |
Newcastle sector and rectangular protractor signed and in green shagreen etui; may be only one set. |
London. |
ADL; RSW. |
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