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We are independent dealers in Cambridge, England, specialising in: Antique pocket watches, Timepieces and Scientific Instruments.

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Surveying /Distance & Navigational Instruments

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Cased Station Finder by Henry Hughes & Son. Ltd.no.3809 c.1900. Solid mahogany box with contact lining of green baize. Instrument is lacquered and japanned brass with 'PATT 70' marked on one of the arms. Case size; 50cm x 19.5cm x 6cm. £250 ($500)

Cased pair of Georgian Nautical dividers. Burgundy Moroccan leather case with gold detailing to lid lined with navy blue velvet and satin with original clasp and hinges. General age related wear to the exterior but overall fine condition. German silver dividers with steel tips. Total length of dividers closed; 17.5cm. c.1800 £225 ($450)

Victorian Architects /Surveyors pocket prismatic square and plum bob. Red Morrocan leather case with original clasp and hinges in fine condition. Fitted interior lined with lightly faded red velvet and satin. Miniature prismatic square in japanned metal case. Mirror backing has some age crazing and discolouration to the edges but is otherwise fine and functions properly.  Miniature brass lacquered plumb bob is fine and just 2.5cm in length! Case size; 7.5cm x 5cm x 2.5cm. £195 ($390)

'Paget Angle Sextant' by E.R. Watts & Son, c.1900. Mahogany case with green baize interior. Ivorine faced dial signed and numbered #839. Detachable rosewood handle. This instrument was used for terrestrial naviagtion by triangulation. There is a split mirror inside which enables you to sight the instrument at your first reference point and then juxtapose this with your second reference point,- with both images side by side in your viewng area you can then read the angle between them. Some paint loss to the main frame, but otherwise in excellent condition. Case size: 18cm x 15.5cm x 6.5cm. £545 ($1090)

Henry Hughes & Son of London patent 'Paget Angle Sextant' #689.  Diameter of top: 11.5cm. Length: 14cm.  Rosewood handle, matt black metal frame and ivorine face & chapter ring. c.1890 £275 ($550) As above but without transit case.

 British military drum sextant by 'T.A. Reynolds, Son & Wardale Ltd'.  Original letaher case with some wear to the strap. Painted brass case with military stamps and prefix 'B546'. Lacquered brass fittings and silvered scale and reference table inside the lid.  All original lenses, mirrors and filters in good condition. A far more advanced version of the 'Paget' style sextant but very portable. 7cm diameter. £650 ($1300)

Early Keuffel & Esser U.S. Lighthouse issue sextant. A smaller sized lattice frame sextant produced by K&E for coastal stations around the U.S. around 1890. Mahogany box with twin catches and a padlock fitting over the original keyhole. Original Keuffel & Esser Co. paper label inside lid giving serial #6085 and issue #5227.  Anodised brass lattice frame with silvered scale, lacquered brass fittings and all original mirrors and filters. Comes with three sighting tubes, two filters, adjustment tool, screwdriver and some short metal rods. Case size; 23cm x 22cm x 14cm. £895 ($1790)

Victorian silver pedometer. Mint white enamel dial with 'watch' style numerals from 1 to 12 (100's of metres?) in solid silver engine turned case hallmarked London 1898. Movement is simply marked with a symbol for the Swiss company 'Lion'. 41mm x 15mm. Superb condition throughout. £225 ($450)

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Pocket abney level / inclinometer by 'F.Barker & Son' of London. Morrocan leather covered wooden case lined with blue silk and velvet. Anodised brass frame with silvered scale and water filled level. This is the non-telescopic model. Case size; 13.5cm x 7cm x 3.5cm. c.1890. £SOLD

Early Victorian Surveyors level & Tripod by Patrick Adie of London. Mahogany case with green baize lining and the original lether outer case. paper label inside lid for 'Adie' of '395 Strand London'.  Adie was working at this address from 1848 to 1868. Anodised brass instrument with lacquered brass fittings, 4 levelling screws and water filled level. Original round section mahogany tripod retains its leather outer case and the wooden top to prevent damnage to the screw thread boss. Superb piece from a highly respected maker. Case size: 28cm x 13.5cm x 8cm. £560 ($1120)

Patrick Adie was a Mathematical and Philosophical Instrument maker working in London from 1848 to 1901.
1848-1868 395 Strand, London
1869-1885 15 Pall mall, SW, London
1869-1870 29 Regent St, Westminster, London
1875  Tothill St, SW, London
1890-1901 Broadway Works, Westminster, London, SW

W.F. Stanley cased Surveying level and tripod. This is a super set! It's a smaller sized inverting tilting level with three levelling screws on the base, sun shield, degree graduated arc for horizontal movement, graduated column for vertical tilt and two water filled spirit levels. The pictures show this as a bluey-grey colour, but in actual fact it is black! The main frame is brass with the black 'crackle effect' covering. The graduated scales are either polished steel or nickel. This piece comes complete with the original A-frame solid mahogany tripod also stamped 'W.F.S.'  The levels transit box is solid mahogany, and the distressing shown in the picture is the loss of some of the original varnish. The extra lens is mounted in the top lid, and the brush and two adjustment rods in the bottom. Size of level with sun shade retracted is: approx 23cm long by 19cm high. Box size is: 28cm x 21cm x 16cm. Dates to around 1910-20. Nice quality piece. £325 ($650) ** This price reflects the adjustment needed for postage outside of the UK, if you are in the UK please contact us for price!!

William Ford Stanley, Mathematical, Optical and Philosophical Instrument maker.
Worked 1860-1900+
1860-64 3 Holborne Bars, London
1860-1900+ 3, 4 & 5 Great Turnstile, Holborne, London
1869-91 13 Railway Approach, London Bridge
1872-91 7, 8 & 9 Tichborne Court, London

Stanley Prismatic vernier mining / surveying compass with jewelled bearing, original filters and both steel and leather cases. C. 1890. £370 ($740). Diameter 14cm.

William Ford Stanley, Mathematical, Optical and Philosophical Instrument maker, worked 1860-1900+
1860-64 3 Holborne Bars, London
1860-1900+ 3, 4 & 5 Great Turnstile, Holborne, London
1869-91 13 Railway Approach, London Bridge
1872-91 7, 8 & 9 Tichborne Court, London

19thC Surveyors cross. Lacquered brass construction. 13cm high. £58 ($116)