12th May, 2022 12:00
Fine Scientific and Medical Instruments
A Fine Vernier Protractor by Elliott Brothers
English, c. 1860-80, in brass with inlaid silver scale, twin arms with micrometer screw adjustment, divided to half a degree and reading to one arc-minute by vernier, diameter 15.5cm, in mahogany case
English, c. 1860-80, in brass with inlaid silver scale, twin arms with micrometer screw adjustment, divided to half a degree and reading to one arc-minute by vernier, diameter 15.5cm, in mahogany case
Auction: Fine Scientific and Medical Instruments, 12th May, 2022
