229. A 19TH-CENTURY POCKET ANEROID BAROMETER BY HAMILTON & INCHES, EDINBURGH
with 1½in. silvered dial signed as per title, blued-steel indicator, rotating bevel scale, contained within a gilt fob-form case with back half of leather outer case -- 3½in. (9cm.) overall
£100-150 230.
A RARE EARLY 20th-CENTURY CYCLONOMETER BY HUGHES & SON, LONDON
with 6in. silvered aneroid barometer inscribed COMPENSATED / THE CYCLONOMETER / No.531, with rotating bevelled glass scale divided for different dates, latitude settings and storm distances, blued-steel indicator with gold marker, set in an oxidised-brass bed plate contained within mahogany box with ivorine maker’s label inscribed Hughes & Son, Opticians, 59 Fenchurch Street, London., the hinged lid containing an ivorine-backed thermometer and an adjustable cyclonometer indicator -- 4½ x 8½in. (11.5 x 21.5cm.)
Designed to give sailors early warning of typhoons and cyclones, this instrument seems to have been developed around 1912 with Hughes & Son issuing this version from the mid-1920s. Alternate names are the ‘barocyclonometer’ or ‘typhoon barometer’.
£1000-1500 231.
‘SLIDING SCALE FOR CORRECTING LONGITUDE AT NOON, FOR AN ERROR IN THE LATITUDE USED IN THE COMPUTATION AT TIME OF SIGHTS, BY GILBERT, T. KEY, LIEUT. R.N.’ J.D. POTTER, LONDON, C.1865
signed on the top plate J.D. Potter / 31, Poultry, London and comprising three card discs inscribed True 45º Bearing; Latitude 0º and Error in Latitude conjoined by a central brass stud, instructions and examples printed on the top plate, the reverse with manuscript inscription reading Rec Feb 7th 1865 at [?] Fort Menrue. -- 6¼in. (16cm.) diameter
John Dennett Potter worked between 1851 and 1880 from this address with a second establishment running from King St. from 1884.
£300-500
232. EMPTY 19TH-CENTURY INSTRUMENT BOXES
comprising two three-tier chronometer boxes; an outer guard box with leather strap for a chronometer; and a keystone box for an octant
(4) £100-200
233. A LATE 19TH-CENTURY ANEROID BAROMETER BY JOHN NOBLE, HONG KONG
with 4¼in. silvered dial signed as per title, black steel needle with gilt indicator and curved tube thermometer around lower edge, contained within lacquered-brass case with suspension loop -- 5in. (12.8cm.) diameter overall
£100-150
234. ‘A NEW AND COMPLETE EPITOME OF PRACTICAL NAVIGATION.. AT SEA..’
J.W. Norie, seventh edition, 1822, containing maps, charts, diagrams and tables, rebound in full calf with gilt titles -- 8¾ x 6in. (22 x 15cm.); together with a copy of Nicholls’s Seamanship & Nautical Knowledge, 17th ed, 1937; and a ‘Capt. Field’s Improved’ boxwood parallel rule -- 24in. (61cm.) diameter
(3) £150-250
229 231 additional images online at
www.charlesmillerltd.com 234 (detail) 67
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