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Date: |
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Description: | ?C. Plath | Hamburg?
?[Plath logo] | 10639?
The sextant has an anodized brass frame and a wooden handle. A white ivorine micrometer drum, a pressure clamp and a worm screw are positioned at the bottom of the index arm. The sextant has four green shades and three green horizon shades. Index-glass adjustment is made by a capped square-headed screw and a separate spanner. Adjustment on the large round horizon glass is made by a capped square-headed screw and a detached spanner.
Attached to the sextant is a threaded telescope bracket in two parts, fitted for correcting collimation error. It has perpendicular adjustment made by a rising-piece and a milled knob. The telescope is 103 mm in length with an erect image. A second telescope is 76 mm long with an erect image. The sight-tube is 83 mm in length and accompanies the sextant along with a spanner, a green shaded eyepiece, and a brush.
This instrument has a polished brass scale from -5� to 137� by 0.5 arcminutes, measuring to 132�. Micrometer to 0.5 arcminutes
The sextant is contained in a square fitted wooden box, with a metal trade label in the lid for C. Plath, Hamburg, Stubbenhuk 25. The box contains a Kelvin Hughes certificate of examination, dated 18 April 1955, and a trade label for Lilley and Reynolds, London.
Inscription.
caption: Sextant - Front
caption: Sextant - Back
caption: Sextant - Inscription
caption: Sextant - Box
caption: Sextant - Box Label | Publisher: | "http://collections.rmg.co.uk/" | Rights holder: | "Royal Museums Greenwich" | Subjects: | Sextant sextants | Source: | Royal Museums Greenwich | Identifier: | http://collections.rmg.co.uk/collections... | Go to resource |
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