$1,440
Mahogany, Brass and Bone 20-inch Octant, unsigned, 18th century, engraved bone arc reading 0-90, brass and mahogany index arm with vernier scale divided 0-10, sighting pinnula, horizon mirror and a set of sunshades, three brass feet on the reverse side along with adjustable brass mechanisms for the mirrors.
Auctioneer:
Skinner
Date:
2013-11-02