$593
Ten Inch Radius Ebony Octant by H. Hughes, London, the brass index arm with thumbscrew vernier adjustment, inset ivory scale calibrated 0-105 and vacant maker's boss, sun shades, mirror, and peep sight all, in a keystone-shaped mahogany box with 3 1/ 2 x 2 1/2 in. printed maker's label inside the lid stating H. Hughes, Optical, Nautical & Mathematical Instrument Maker 59 Fenchurch Street, London .
Auctioneer:
Skinner
Date:
2009-07-25