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LicenseThis image is released under a CC BY-NC-SA 4.0 Licence
Buy this image as a print
BuyLicense this image for commercial use at Science and Society Picture Library
LicenseThis image is released under a CC BY-NC-SA 4.0 Licence
Buy this image as a print
BuyLicense this image for commercial use at Science and Society Picture Library
LicenseThis image is released under a CC BY-NC-SA 4.0 Licence
Buy this image as a print
BuyLicense this image for commercial use at Science and Society Picture Library
LicenseBrass sextant with two-plate frame
Science Museum Group Collection
© The Board of Trustees of the Science Museum
Brass sextant with two-plate frame
Science Museum Group Collection
© The Board of Trustees of the Science Museum
Brass sextant with two-plate frame
Science Museum Group Collection
© The Board of Trustees of the Science Museum
Brass sextant with two-plate frame
Science Museum Group Collection
© The Board of Trustees of the Science Museum
Brass sextant with two-plate frame, attached by 47 screws with wooden handle and fitted wooden keystone case with textile lining, by Joshua Lover Martin, London, England, 1775-1782. Consists of polished brass 122° scale (-5° to 125°) with vernier (1’), three index-filter shades (red, green & orange), two horizon filters (orange. Fitted with threaded bracket for sighting telescope (129mm – erect image & 160 – inverted image) and sighting pinhole vane.
Details
- Category:
- Astronomy
- Object Number:
- 1907-94
- Materials:
- metal
- type:
- sextant and instrument case
- credit:
- J.C. Stevens Auction House
