Roberts True Course Finder
C.1876, English, signed 'Robert's patented true course finder APPS Sole Manufacturer 433 Strand London', silvered dial profusely engraved, with magnifying glass to vernier scale on rotating arm, with push on brass cover, used in sea navigation
Referance; For a similar instrument see: http://collection.sciencemuseum.org.uk/objects/co55402/true-course-finder-navigational-instrument
Sold for £420
Result plus buyers premium
C.1876, English, signed 'Robert's patented true course finder APPS Sole Manufacturer 433 Strand London', silvered dial profusely engraved, with magnifying glass to vernier scale on rotating arm, with push on brass cover, used in sea navigation
Referance; For a similar instrument see: http://collection.sciencemuseum.org.uk/objects/co55402/true-course-finder-navigational-instrument