18th Oct, 2019 12:00
Fine Photographica & Instruments of Science & Medicine
Anderson's Improved Slide Rule
English, c. 1910, mahogany with celluloid scales and celluloid fixed cursors attached to the slide, British patent 1903 and USA 1904, by L P Casella.
Sold for £96
Result plus buyers premium
English, c. 1910, mahogany with celluloid scales and celluloid fixed cursors attached to the slide, British patent 1903 and USA 1904, by L P Casella.
Auction: Fine Photographica & Instruments of Science & Medicine, 18th Oct, 2019
