Fine lattice frame sextant Berge London, late Ramsden
A full size, lattice frame lacquered brass sextant, signed on the arc. The silver scale reads from 0 -130 with the vernier reading to 15 arc seconds, the vernier arm adjustable by screw and tangent thumb screws and fitted with a worm drive adjustable magnifyer. The mirrors and shades are excellent and the instrument retains 100% lacquer; it is quite possible the sextant is unused, all in original condition. The case holds one sighting tube, two telescopes (one high power, one low) both with cross hairs that give inverted images when viewed, an eye-piece with a revolving stop of coloured sun shades, and an adjusing pin.
It has a working lock (no key) and two hook & eye fasteners. There are no cracks or damage but a wooden insert is missing to the inside.
Mathew Berge took over the business of Jesse Ramsden in 1800 and worked until 1819. Berge, London but earlier ones included the words, Late Ramsden.
The item "Fine lattice frame sextant Berge London, late Ramsden" is in sale since Friday, February 14, 2020. This item is in the category "Antiques\Science/Medicine\Scientific Instruments". The seller is "marl727" and is located in Blackpool. This item can be shipped to North, South, or Latin America, all countries in Europe.
- Period: 1800 to 1900
- Material: Brass