Case for brass framed sextant.
Wooden case for Sextant by J.R. Martin
Brass framed sextant with case.
- maker:
- Joshua Lover Martin
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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
License
Science Museum Group Collection
© The Board of Trustees of the Science Museum
Science Museum Group Collection
© The Board of Trustees of the Science Museum
Science Museum Group Collection
© The Board of Trustees of the Science Museum
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
Parts
Brass Framed Sextant.
Sextant made by Joshua Lover Martin, London, late 18th century.
- Materials:
- metal (unknown) , brass (copper, zinc alloy) , glass and mahogany (wood)
- Object Number:
- 1907-94 Pt2
- type:
- sextant
