A FINE 12IN. RADIUS VERNIER SEXTANT BY JESSE RAMSDEN, LONDON, CIRCA 1785
with straight-bar frame, the arc divided to 135º signed to middle as per title, the veriner with right-orientated '0', braced index arm, fixed full-length sighting tube with half mirror mounted to end, interchangeable black/silver index mirror numbered behind '840', five shades, wooden handle and pin feet, contained within fitted yellow-pine case with accessories including secondary tube, threaded eye-piece shade, black mirror and screwdriver, the lid with manuscript label reading Ramsden's sextant / June 8th, 1842 / Index error 2' 26" / to be subtracted, cased measurements -- 15 x 17in. (38 x 43cm.)

Ref: Morzer Bruyns, W.F.J.: Sextants at Greenwich, Oxford, 2009, No.141, Inv. No. NAV1104 which described a similar instrument, numbered 842; Whipple Museum Inv No. WH.2122.

Condition Report
It has been suggested that the case might be an early replacement - certainly it can't post-date 1842 - however Ramsden's cases are usually mahogany - there's no reason a client couldn't request a more workable case which could be used aboard a ship without causing wear to a fine finish. There is only one telescope space lacking its scope, all the other accessories appear complete. The sextant has a dirty main scale but it is in good readable order and the whole instrument is is good, sharp order.

We are pleased to provide you with a general report of the condition of this property. Since we are not professional conservators or restorers, we urge you to consult with a restorer or conservator of your choice who will be better able to provide a detailed, professional report. Prospective buyers should inspect each lot to satisfy themselves as to condition and must understand that any statement made by Charles Miller Ltd is merely a subjective, qualified opinion. Prospective buyers should also refer to any Important Notices regarding this sale, which are printed in the Sale Catalogue. NOTWITHSTANDING THIS REPORT OR ANY DISCUSSIONS CONCERNING A LOT, ALL LOTS ARE OFFERED AND SOLD “AS IS” IN ACCORDANCE WITH THE CONDITIONS OF BUSINESS PRINTED IN THE SALE CATALOGUE.