Sextants & Octants (brass, cased, marine navigation)
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164 sales
Typical price ~
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Most sales ~
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High end ~
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Complete in original fitted case essential; named makers (Heath, Troughton & Simms) preferred; ebony octants earlier and rarer
Full Sales History
164 sales
E Hand & Sons P.E.X. compass, two replica...
Tennants
1 Mar 2026
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An early 20th Century vintage Hall Brothers of Croydon, England lacquered brass theodolite with silvered measure dials and bubble levels on adjustable stand, 38cm high.
Hansons
26 Feb 2026
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A mid 19th Century cased theodolite BWS Jones of 30 Holborn, London, in mahogany twin handled carry case, signed to the lacquered brass above silvered measure, with telescope and levelling tube mounte…
Hansons
26 Feb 2026
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Two vintage small brass theodolite/compasses on stands, mounted on sturdy brass base with three adjustable screws.
Hansons
26 Feb 2026
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Four brass surveying instruments, one by Stanley
Hansons
26 Feb 2026
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Four surveying and measuring instruments to include examples by Haldens, Stanley and Troughton and Simms of London
Hansons
26 Feb 2026
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A Surveyors Rule in very good condition
Hansons
26 Feb 2026
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A Surveyors Rule, a tripod and two Theodolites by J Casartelli and ER Watts
Hansons
26 Feb 2026
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A Theodolite by Hall Brothers of Clerkenwell 1917
Hansons
26 Feb 2026
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A Theodolite by ER Watts with War Department Broad Arrow. Complete with tripod
Hansons
26 Feb 2026
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A Reynolds Patent Theodolite with tripod
Hansons
26 Feb 2026
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A brass Stanley Patent Theodolite Patent Theodolite with tripod
Hansons
26 Feb 2026
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A Reynolds Patent Theodolite with tripod
Hansons
26 Feb 2026
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Marine Sexton by Tamaya & Co Ltd. This vintage marine sextant comes complete with its original box. Dating to the early 1950s, this marine instrument is in excellent condition with only the slightest …
Hansons
26 Feb 2026
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A sewills of Liverpool, Sealord chronometer, with a wooden mahogany presentation case, featuring various brass components. A Seawills of Liverpool, Sealord chronometer, with a wooden mahogany presenta…
Hansons
26 Feb 2026
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A mid 19th Century brass theodolite, which is an optical instrument used for measuring vertical angles between visible points, fitted with bubble level and compass, silvered measuring dials, standing …
Hansons
26 Feb 2026
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An early 20th Century vintager Hall Brothers of Croydon, England lacquered brass theodolite with silvered measure dials and bubble levels on adjustable stand, 38cm high.
Hansons
26 Feb 2026
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A mid 19th Century cased theodolite BWS Jones of 30 Holborn, London, in mahogany twin handled carry case, signed to the lacquered brass above silvered measure, with telescope and levelling tube mounte…
Hansons
26 Feb 2026
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A WWI era lacquered brass Verner's Pattern VIII prismatic marching compass by T Cooke & Sons Ltd with broad arrow mark dated 1917 together with six various car badges including 1956 Melbourne Olym
Hansons
26 Feb 2026
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Military 1939 E.R. Watts & Son Theodolite, measuring approx. 24cm's high x 18.5cm's max width (in good condition commensurate with the age of the theodolite)
Hansons
22 Feb 2026
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AN EARLY 20TH CENTURY "WATKINS MEKOMETER, T.COOKE & SONS LTD, MEKs ARTy H&F (Horse & Field), 1910, No117. Also stamped 117 W/I\D on brass mount to a turned lignum handle, to which attached a long rang…
Hansons
20 Feb 2026
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Marine Sexton by Tamaya & Co Ltd. This vintage marine sextant comes complete with its original box. Dating to the early 1950s, this marine instrument is in excellent condition with only the slightest …
Hansons
17 Jan 2026
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An early 20th Century vintage Hall Brothers of Croydon, England lacquered brass theodolite with silvered measure dials and bubble levels on adjustable stand, 38cm high.
Hansons
15 Jan 2026
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A sewills of Liverpool, Sealord chronometer, with a wooden mahogany presentation case, featuring various brass components. A Seawills of Liverpool, Sealord chronometer, with a wooden mahogany presenta…
Hansons
9 Jan 2026
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A 19th century ebonised, ivory and brass octant by maker W & S Jones, 30 Holborn, London, 35.5 x
Hansons
6 Jan 2026
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WWI Royal Flying Corps Creagh-Osborne Type 5/17 Aircraft Compass
SAS
19 Nov 2025
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WWI Officer's Field Compass by F Barker & Son
SAS
19 Nov 2025
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German Gimble Compass by C.Plath
SAS
19 Nov 2025
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A GERMAN MAHOGANY CASED SEXTANT — 19th Century The sextant incised ‘Welag XX 479’, in a fitted case with two lenses, the case 30cm wide
Bellmans
18 Nov 2025
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GERMAN MAHOGANY CASED SEXTANT
Bellmans
18 Nov 2025
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German sextant
Sworders
17 Nov 2025
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small mahogany pocket compass
Sworders
10 Nov 2025
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& Hughes Sextant
Tennants
22 Oct 2025
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- A Cooke of Hull Marine Sextant
Chiswick
21 Oct 2025
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A RARE PORTABLE INSTRUCTIONAL "PILOT BOARD" NAVIGATION SET, English, 1860-70,
Bonhams
15 Oct 2025
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A John Goater lignum vitae and boxwood backstaff, English, mid 18th century,
Bonhams
15 Oct 2025
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A cased mahogany pocket surveying compass relating to HMS Bounty, English, 18th century,. Sold for £14,080 inc. premium
Bonhams
15 Oct 2025
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TWO WWII AND MID-CENTURY MARINE SEXTANTS BY HENRY HUGHES & SON, LONDON AND G. DE KONINGH, ARNHEM (2) — Dated 1943 and 1965 respectively The first by Henry Hughes & Son Ltd (HUSUN), No. 35470, a 6-inch…
Bellmans
13 Oct 2025
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A GROUP OF FIVE FIELD SURVEY AND MILITARY INSTRUMENTS BY TROUGHTON & SIMMS, T. COOKE & SONS, NEGRETTI & ZAMBRA, AND OTHERS (5) — 20th Century Including a prismatic compass by Troughton & Simms, London…
Bellmans
13 Oct 2025
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Quadrant , Circa 1980
Bonhams
24 Sep 2025
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A rare Jacques Canivet silver sector, French, dated 1768,
Bonhams
9 Sep 2025
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A G Whitbread brass sextant, English, mid 19th century,
Bonhams
9 Sep 2025
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A John Worgan brass sector, English, circa 1700,
Bonhams
9 Sep 2025
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A G Whitehead brass sextant, English, late 19th century,
Bonhams
9 Sep 2025
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A Heath "bell-pattern" brass sextant, English, late 19th century,
Bonhams
9 Sep 2025
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A CARY & CO. CASED SEXTANT — Late 19th Century A brass and black sextant inscribed 'Cary, London' and 'G.O. Stephenson R.N' to the arch, with additional lenses, within a mahogany case with certificate…
Bellmans
8 Sep 2025
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- Spencer, Browning & Rust of London, pocket sextant, circa 1790
Chiswick
22 Aug 2025
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H. HUGHES, LONDON: A PRESENTATION TELESCOPE IN CASE — 19th Century The silver-plated telescope with presentation inscription reading 'Thames Marine Officers Training Ship Worcester Port Of London Seam…
Bellmans
4 Aug 2025
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Angelus Travelling Compendium, strut case,...
Tennants
4 Jul 2025
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WWII Air Ministry P8 Aircraft Compass
SAS
4 Jun 2025
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Vintage Pocket Sextant by Henry Barrow & Co
SAS
4 Jun 2025
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brass theodolite
Sworders
20 May 2025
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& Simms Theodolite
Tennants
14 May 2025
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A J King ebony octant, English, circa 1837, stamped J King Bristol,
Bonhams
30 Apr 2025
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- AN OAK CASED VICTORIAN BRASS SEXTANT
Chiswick
25 Apr 2025
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- A Smith Beck & Beck Achromatic Stereoscope
Chiswick
31 Mar 2025
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- Opticron ES 80GA ED Spotting Scope.
Chiswick
31 Mar 2025
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- Celestron Hummingbird 7-22x50 ED Micro Spotting Scope.
Chiswick
31 Mar 2025
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- Opticron ES 80GA ED v3 Spotting Scope.
Chiswick
31 Mar 2025
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- Nikon ED 50 Fieldscope with Protective Cover.
Chiswick
31 Mar 2025
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A GEORGE I BRASS DRAUGHTSMANS FULL CIRCLE PROTRACTOR
Dreweatts
25 Mar 2025
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AN ISLAMIC ENGRAVED BRASS ASTROLABIC QUADRANT
Dreweatts
25 Mar 2025
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TWO DECORATIVE ISLAMIC BRASS ASTROLABES
Dreweatts
25 Mar 2025
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AN ISLAMIC BRASS ASTROLABE IN THE MAGHREBI STYLE
Dreweatts
25 Mar 2025
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theodolite by Stanley
Sworders
4 Mar 2025
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theodolite levels
Sworders
4 Mar 2025
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A brass universal equinoctial ring dial, English, 18th century,
Bonhams
26 Feb 2025
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Waymouth-Ross Naval Rangefinder
SAS
4 Feb 2025
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Torpedo Range Finder/Calculator
SAS
4 Feb 2025
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German 8.8cm Submarine Deck Gun Sight by Carl Zeiss Jena
SAS
4 Feb 2025
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1960s Engine Order Indicator/Transmitter by Evershed & Vignoles Ltd
SAS
4 Feb 2025
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Marconi International Marine Communication Co. Course Bearing Corrector
SAS
4 Feb 2025
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Battenberg's Course Indicator Mark III
SAS
4 Feb 2025
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Gyro Azimuth Circle
SAS
4 Feb 2025
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ATS 80 HD Spotting Scope
Tennants
29 Jan 2025
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& Compy (Dublin) Brass Dumpy Level
Tennants
29 Jan 2025
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A lacquered metal and brass sextant by Hughes of Fenchurch Street of London, circa 1900
Bonhams
23 Jan 2025
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A Victorian sextant By Soloman Marks & Co, Cardiff (2)
Bonhams
23 Jan 2025
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F Barker and Sons, London British Army Officers pocket compass. WWI, 65cm, circa 1917
Hansons
5 Dec 2024
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A Theodolite stamped DANCER, MANCHESTER , in a mahogany fitted case with label J. Halden & Co. LTD. length 31cm, Condition : Used with age related marks , levels detached.
Hansons
27 Nov 2024
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2 Large Vintage Steel Vernier Measuring Calipers (2) The largest on heavy cast iron base. Kanon Stainless Steel 40 inch model Model The other a Rabone Chesterman No.770 50 inch hand held Vernier cali
Hansons
16 Nov 2024
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2 x WW2 era British Mark III compasses, one complete with its original leather case. Both by ‘T.G.Co Ltd London’, with one dated for 1944, and the other for 1945, with broad arrow marks. Both examples…
Hansons
13 Nov 2024
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vintage Dry Card Compass by John Campbell of Liverpool
SAS
29 Oct 2024
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Field Scope stamped J.F.B
SAS
29 Oct 2024
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WWII Spotting Scope by AK & S
SAS
29 Oct 2024
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J Achbutt, London, a japanned surveyor's theodolite with various levels and a compass set base, in a fitted mahogany case bearing Edwin Palmer label. Case height 45cm (handle down)
Hansons
23 Oct 2024
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Hull Sextant
Tennants
27 Sep 2024
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Sextant
Tennants
27 Sep 2024
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Late 19th Century Prismatic Surveying...
Tennants
18 Sep 2024
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First World War Marching Compass, makers T....
Tennants
14 Sep 2024
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AN EARLY VICTORIAN LACQUERED BRASS THEODOLITE
Dreweatts
12 Sep 2024
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A BELGIUM LACQUERED BRASS SURVEYOR’S SIGHTING CROSS
Dreweatts
12 Sep 2024
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AN AUSTRIAN OXIDISED BRASS THEODOLITE
Dreweatts
12 Sep 2024
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A FINE VIENNESE LACQUERED BRASS CAMPAIGN THEODOLITE
Dreweatts
12 Sep 2024
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Two uncased Theodolites, one marked Thoughton & Simms, London Height 37cm, the other marked 94110 , Stanley, Great Turnstile, Holborn, London. Height 20cm x Length 38cm. Condition : age related marks.…
Hansons
10 Sep 2024
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A brass cased 19th century combination compass and barometer, with fitted leather case button missing, together wiith a pair of tortoiseshell lorgnettes
Hansons
6 Sep 2024
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Cased French ''Som'' Theodolite, another...
Tennants
6 Sep 2024
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pair of binoculars a surveyor's tape measure and a leather-cased slide rule
SAS
3 Sep 2024
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A 20th century Kelvin & Hughes of London sextant in a mahogany case.
Hansons
15 Aug 2024
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early 20th century Medium Ellipse lacquered brass and steel compass
SAS
6 Aug 2024
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Level (cased) with surveyors pole,...
Tennants
2 Aug 2024
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20th Century cased Needle Dip by W & J George Ltd
SAS
30 Jul 2024
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mahogany cased Dip Circle/Needle Dip
SAS
30 Jul 2024
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vintage brass Dip Circle
SAS
30 Jul 2024
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Dip Circle by Philip Harris Ltd
SAS
30 Jul 2024
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teak cased Surveyors compass
SAS
30 Jul 2024
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Antique Surveyor's Compass by Troughton & Simms of London
SAS
30 Jul 2024
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early/mid 20th Century Pocket Compass
SAS
30 Jul 2024
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vintage Pocket Compass with Integral Inclinometer
SAS
30 Jul 2024
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Pocket Box Sextant by Troughton & Simms of London
SAS
30 Jul 2024
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Pocket Box Sextant by Stanley of London
SAS
30 Jul 2024
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vintage three ring sextant by Newton Bros of Hull
SAS
30 Jul 2024
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Vintage Sextant by Alexander Cairns of Liverpool
SAS
30 Jul 2024
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Brass Surveyor's Compass by SEH
SAS
30 Jul 2024
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WWII Military Issue Pocket Box Sextant by Stanley of London
SAS
30 Jul 2024
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Clinometer Sight Mk7 Gun Sight/Level
SAS
30 Jul 2024
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early 20th Century Surveyors Level
SAS
30 Jul 2024
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early 20th Century Surveyors Level by Stanley of London
SAS
30 Jul 2024
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early 20th Century Surveyors Level by A.G Thornton of Manchester
SAS
30 Jul 2024
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Hilger & Watts Ltd No.1 Microptic Theodolite
SAS
30 Jul 2024
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A boxed brass marine compass, engraved West London, with anchor motif embossed on wooden case in brass, a Reed's sextant with original instructions in original wooden case with brass mounts and a boxe…
Hansons
12 Jul 2024
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& Co Hezzanith Sextant
Tennants
15 May 2024
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Boat Related Instruments And Related Items
Tennants
15 May 2024
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Vintage Hilger & Watts Theodolite
SAS
14 May 2024
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Dietzgen 6000 Series Engineers' Transit
SAS
14 May 2024
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A theodolite by William Dollond - instrument maker to Her Majesty, with attachments in a fitted box. Engraved William Bell.
Hansons
3 May 2024
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Kowa Prominar TSM-4 Scope with carrying case, and tripod
Sworders
23 Apr 2024
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Brass Theodolite
Tennants
22 Mar 2024
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An Astro Compass Mark II
Hansons
23 Feb 2024
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Mixed collection of compasses i.e. military, 19th Century/early 20th Century and modern along with two telescopes.
Hansons
18 Jan 2024
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Quantity of Compasses, quizzing glasses,...
Tennants
5 Jan 2024
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and compases
SAS
6 Dec 2023
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An Astro Compass Mark II
Hansons
29 Nov 2023
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A cased vintage Mariners Pocket Sextant, Made by William Cary of London. C1850. Contained in circular case with screwed lid in original leather case. Please assess photographs.
Hansons
23 Nov 2023
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Late Georgian boxed brass surveyors scope by Troughton and Simms London. Good condition in need of a clean.
Hansons
23 Nov 2023
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A WW2 field morse code machine, a WW2 bubble sextant, an AM Astro Compass Mk II, a radiator Calormeter and a pair of navigation calipers.
Hansons
21 Nov 2023
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A WW1 Verniers style Compass in brass, with original leather case. In need of some restoration...
Hansons
7 Nov 2023
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Mid 19th Century leather bound three draw telescope, and associated leather case, by A Ross of London, the telescope being inscribed to Col The Honourable GT Devereux Royal Horse Artillery, the leathe…
Hansons
27 Oct 2023
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A brass military tank gun sight telescope, undated but possibly WW1 era. Marked Ross London Patent, and ‘No 43268’. Solid brass construction with Japanned eyepiece area. Crosshatched grip area marked
Hansons
27 Oct 2023
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An early 20th century military gun sight / telescope, dated 1903. Marked for ‘W.Ottway & Co, Orion Works, Ealing Dr Commons Patents 1903 Power 6’. Heavy brass body with dark patina, screw section to t…
Hansons
27 Oct 2023
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A Vintage Anemometer / Wind Speed Velocity by Short & Mason of London. Complete with velvet lined leather transit case. Brass rimmed dial with 2 subsidiary dials, marked ‘No L8060’. Black painted meta…
Hansons
27 Oct 2023
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& Son Sextant
Tennants
27 Sep 2023
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& Co. Sextant
Tennants
27 Sep 2023
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Instrument Works Sextant
Tennants
27 Sep 2023
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Cooke & Sons Sextant
Tennants
27 Sep 2023
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Refracting Telescope
Tennants
27 Sep 2023
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☘ A brass-framed sextant by Henry Barrow & Co., London, 1928
Sworders
14 Sep 2023
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small George III brass sextant by Matthew Berge
Sworders
6 Sep 2023
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Aviation Type 06A hand held compass
SAS
8 Aug 2023
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WWI Verners Pattern Pocket Compass
SAS
8 Aug 2023
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brass transit theodolite
Sworders
11 Jul 2023
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brass military theodolite
Sworders
11 Jul 2023
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Sextant
Tennants
17 May 2023
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Handy Theodolite
Tennants
17 May 2023
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By Sewill (Maker To The Royal Navy, Liverpool)
Tennants
17 May 2023
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A.C.U.S Army Type B-17 Bearing Compass
SAS
10 May 2023
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Vernier's Pattern VII Officer's Pocket Compass
SAS
10 May 2023
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Siemens Bros & Co Clinometer
SAS
10 May 2023
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WWI Tel Sig (Mk III) Telescope by Ross of London
SAS
10 May 2023
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WWI Military Issue W Ottway & Co Gun Sighting
SAS
10 May 2023
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1930s Range Finder No.2 Mark II by Barr & Stroud
SAS
10 May 2023
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WWII Tel Sig Mk VI by Ottoway & Co Ltd
SAS
10 May 2023
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WWI Sighting Tel No.4 Mark III
SAS
10 May 2023
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sexton and compass
SAS
3 May 2023
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About These Prices
Compiled from recent results across Dreweatts, Bonhams, Hansons, Chiswick Auctions, Special Auction Services, Sworders, Tennants, Cheffins, Bellmans, and Lyon & Turnbull. Hammer prices excluding buyer's premium. Price ranges are based on the 10th–90th percentile of recorded sales — unusually high or low results are excluded to avoid skewing the range.