Bullock's circular protractor

Made:: 1816-1850 in Charing Cross

maker:: Thomas Jones

Bullock's circular protractor, 6 inch, divided on silver to 1/2 degree, reading by vernier to 1', with tubular radial arms; engraved "Thomas Jones, 62 Charing Cross, London" and "R.109", in case

Details

Category:: Mathematics

Object Number:: 1876-512

type:: drawing instruments and circular protractors

credit:: British Admiralty (Hydrographic Department)

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