1st May, 2024 13:00
Science, Medicine & Early Technology
Swing Arm Protractor
English, c.1840, engraved across the vernier arm'Watkins & Hill Charring Crofs London' with silver scale, gearing around the edge both arms with steel springs, in a shaped French polished mahogany case
Sold for £125
Result plus buyers premium
English, c.1840, engraved across the vernier arm'Watkins & Hill Charring Crofs London' with silver scale, gearing around the edge both arms with steel springs, in a shaped French polished mahogany case
Auction: Science, Medicine & Early Technology, 1st May, 2024
