Sold for:
$830
$830
10-inch Radius Ebony Octant by Spencer & Company, London, with bone maker's plaque marked Spencer & Co. London , scale calibrated 0-105, brass index arm with vernier scale divided 0-20, brass thumb screw lock, sighting pinnula, mirror, shades and keystone walnut box with printed paper retailer's label stating Charles F. Helffricht, Instrument Maker, Sign of the Quadrant, No. 122 South Front St....Philadelphia . Very clean condition overall, brass in mellow surface, label in perfect condition.
Auctioneer:
Skinner
Date:
2010-11-20
