True-course finder

Made:
1876 in London
patentee:
W H Roberts
maker:
Alfred Apps
Robert's patented true course finder with magnifying glass True-course Finder Roberts, W.H. Roberts' patent True-course

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Creative Commons LicenseThis image is released under a CC BY-NC-SA 4.0 Licence

Buy this image as a print 

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License this image for commercial use at Science and Society Picture Library

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Robert's patented true course finder with magnifying glass
Science Museum Group
© The Board of Trustees of the Science Museum

True-course Finder Roberts, W.H. Roberts' patent True-course
Science Museum Group Collection
© The Board of Trustees of the Science Museum

Robert's patented true course finder with magnifying glass, used in sea navigation, patented by WH Roberts in 1876, by Alfred Apps, London, c.1876

Details

Category:
Navigation
Object Number:
1876-771
Materials:
brass (copper, zinc alloy), nickel silver (nickel, copper, zinc alloy) and glass
Measurements:
overall: 13 mm, 111 mm, 0.27kg
type:
navigational instrument
credit:
Roberts, W.H.