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Date: |
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Description: | 7547
C. Plath Hamburg (engraved crest) M1305
M1304
The quintant has a black-lacquered brass three-circle pattern frame, with a wooden handle. Locking of the index arm is by a sprung lever on the top of the arm. A white plastic micrometer drum is located on the index arm. The instrument has four shades, three grey and one green, and two horizon shades in green and grey. Index-glass adjustment is made by a capstan screw and on the horizon glass by screws.
Attached to the quintant 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 with a locking collar. The sight-tube is 84 mm in length. Accompanying the instrument are two L-shaped brackets and an adjusting pin. The telescopes, a shaded eyepiece, and some unidentified parts are missing.
The instrument has a polished brass limb with scale from -5� to 150� by 1 arcminute, measuring to 137�. Micrometer to 1 arcminute.
The quintant is contained in a square fitted wooden box marked ?7547 M 1305?. There is a metal trade label in the lid for Plath, a typed note in German on the eccentricity error, which is dated 26 July 1917, and a rubber stamp of the Imperial German Navy.
This instrument was taken from a German submarine during World War I.
Inscription.
caption: Quintant - Front
caption: Quintant - Back
caption: Quintant - Box
caption: Quintant - Label
caption: Quintant - Inscription | Publisher: | "http://collections.rmg.co.uk/" | Rights holder: | "Royal Museums Greenwich" | Subjects: | Plath Quintant sextants C. | Source: | Royal Museums Greenwich | Identifier: | http://collections.rmg.co.uk/collections... | Go to resource |
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