|
Date: |
|
Description: | "Hezzanith" / Endless Tangent Screw / Automatic Clamp / Patent
"The 'Hezzanith' Instrument Works / London / Certificate of Examination / The Sextant No. F.130... 23rd December 1940"
Made in England / F.130 / Heath & Co. New Eltham London S.E.9.
The sextant has a black-lacquered brass three-circle pattern frame and a wooden handle. The endless tangent screw and clamping screw are positioned on the back of the index arm. The instrument has four green shades and three green horizon shades. Index-glass adjustment is made by a screw and on the horizon glass by capstan screws.
Attached to the sextant is a magnifier on an 85mm swivelling arm. There is also a threaded telescope bracket with perpendicular adjustment made by a rising-piece and a milled knob. The telescope is 71 mm in length with an erect image and a wide objective lens (star finder). The sight-tube is 82 mm long with a red shaded eyepiece and an adjusting pin.
The instrument has a bronzed limb with an inlaid silver scale from -5.5� to 150� by 10 arcminutes, measuring to 130�. The sextant has a silver vernier measuring to 2 arcseconds, with zero at the right.
The sextant is contained in a square fitted wooden box, with a Hezzanith Instrument Works certificate of examination in the lid, dated 23 December 1940.
AUDIT - four unnumbered parts
caption: Sextant - front
caption: Sextant - back
caption: Sextant - box
caption: Sextant - box label | Publisher: | "http://collections.rmg.co.uk/" | Rights holder: | "Royal Museums Greenwich" | Subjects: | Sextant Hezzanith Vernier Heath & Co. Ltd sextants | Source: | Royal Museums Greenwich | Identifier: | http://collections.rmg.co.uk/collections... | Go to resource |
|
More Like this...
-
Sextant
Hezzanith | Rapid-Reader | Patent…
-
Sextant
The sextant has a black-lacquered…
-
Sextant
HEZZANITH OBSERVATORY / LONDON /…
-
Sextant
?1012?
?Elliott Bros, London?
The…
-
-
-
-
Sextant
Hamburg // den 18ten Februar…
-
Sextant
[foul anchor]
?Parnell. | London?…
-
Sextant
The sextant has a polished…
|