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An unusual 2' two fold ivory slide rule by J PARKES & Son Regist'd Jan'y 10 1850 with LSD scales, brass protractor hinge and slide and unusually, fitted with a brass spirit level G+ DAW

A very rare 20" two fold boxwood and brass Grantham's Clinometer by WATKINS & HILL Charing Cross London c1845 with level, protractor and compass, when not in use the brass wing fits into a special compartment to close, also with tables etc printed on one side, superb condition F

A rare brass Simpson's Protractor with 8" silvered dial Made By S.P.COHEN Glasgow (Simeon Phineas w 844-53) 20 1/2" o/a with sprung 17" sliding cross bar, the gilded finish is worn but would clean to leave a spectacular brass board protractor G+

A 6" German silver protractor by STANLEY London in orig fitted mahogany case F

A 2' four fold architects ivory rule by RABONE with German silver fittings, protractor hinge and inside bevel edges, 2 pins missing o/w F

RAF Mk 2 flying helmet with am marked course & speed calculator mk2 in case am marked protractor ABC book of the RAF and navigators note books etc.

A George III shagreen and silver tapered rounded rectangular draughtsman's etui, hinged cover enclosing brass protractor, various other brass drawing instruments and boxwood rule within a fitted interior, 13.2cm long, 7.6cm wide, c.1800

AN ELLIOTT BROTHERS 6.75-INCH BRASS PROTRACTOR in a mahogany case.

A large and comprehensive collection of Railway Modelling tools, accessories and equipment. Including high quality tools: Proxxon Precision Vice FMS75, Hyper Tough 16-piece cutting set, Rolson 42-piece screwdriver and bit set, Protractor, Xuron Corp vertical cutting track cutter, Expo N/File Set/Handle, Plastic tool boxes containing tweezers, screwdrivers, pliers, drill bits etc. Unmade Metcalfe card kits together with some completed examples. Many packeted items by Peco, Graham Farish, Gaugemaster etc. Reels of colour plastic coated wiring. Rotring 10" adjustable set square, Peco points and track, A3 cutting mat, plus a few handbooks etc. Many items boxed/packeted. GC-Mint.

A cased WWII military issue brass protractor by C. Smith (Clerkenwell) Ltd, dated 1940 with military arrow, in walnut case

BAG OF MINIATURE BOOKS, VARIOUS PENS, PROTRACTOR RULER ETC

Wahl silver plated Eversharp propelling pencil, silver pencil sheath (marks rubbed), gold plated propelling pencil and vintage marbled propelling pencil & bone handled protractor

EARLY TWENTIETH CENTURY CASED PROTRACTOR BY ALEX MABON & SONS, GLASGOW numbered 2008J, 61cm long, in fitted mahogany case

A BRASS BULLET MOLD, together with travelling inkwells, compass, protractor etc

A watch makers lathe, vertical gauge in imperial and metric, a bevel protractor set together with three filing boxes containing watch and clock repair pieces including bushes, pins, suspension springs, key, bushes, springs, etc

STANLEY BRASS PROTRACTOR - a boxed six inch diameter brass folding arm 360 degree protractor signed Stanley, London.

Scientific instruments - A mahogany cased Hezzanith station pointer (also know as a ship's map protractor), Heath and Co., London, used to determine a position on a map relative to two known sightings.

A W. Elliott, 268 High Holborn, London ivory 6 inch protractor.

An Edwardian oak cased draughtsman's set with fitted lift-out trays, comprising nickel and ivory drawing instruments, boxwood scale rules, set square and curves, brass protractor and ivory parnell ruler by Stanley of London, to/w a boxed 'Supreme' slide rule, with instructions (2)

An oak cased set of drawing instruments, some marked "Reynolds", and with series of ivory rules, with Chadburn Brothers protractor, stencil cutters and a cased pen set.

A 1950s Cooke, Troughton & Simms polarising petrographic microscope, Serial M702945, with spare eyepieces / lenses, 13ins high, in fitted case, and a combination box with rectangular protractor and rolling parallel rule, stamped "Coombes, Devonport", 15ins x 2.5ins, in fitted mahogany case Provenance: The Collection of the late Dr L.L.Boyle of Patrixbourne

Protractor and compass sets etc.

An early 19th century continental gilt brass and shagreen instrument case, the case with foliate engraved hinge enclosing a fitted interior with scissors, knife, dip quill, pencil and case, protractor and ruler engraved Pariser Zoll and Wienner Zoll, 134.5cm (as found)

A large late 19th Century white metal protractor in original mahogany box, by Elliott Brothers, London and with engraved scale, 20cms wide ++good

AN EARLY 19TH-CENTURY POCKET DRAWING SET, unsigned, of typical form, with instruments including dividers, compass, brass protractor, parallel rule, square etc., in fitted shagreen covered pocket case -- 7in. (17.8cm.) high; together with three cased proportional dividers; and an ivorine sector by Gardner & Co., Glasgow, (5)

A 14½IN. PANTOGRAPH BY WILLIAM HARRIS, LONDON, CIRCA 1805, of typical form and constructing in lacquered brass, signed on one arm Harris, 47 Holborn, and contained in original wooden box with accessories, maker's label in lid and a rare set of instructions -- 15½in. (39cm.) wide; together with a circular protractor by Abraham, Liverpool; and a folding arm protractor by Doublet, 6 Moorgate St, London, (3),

CAPTAIN DOUGLASS'S REFLECTING PROTRACTOR, BY WILLIAM CARY, LONDON, CIRCA 1825, constructed in lacquered brass, arc divided to 130° and signed Cary, London, vernier scale inscribed Patent 289, index arm with pinhole sight, attached to square protractor, contained within original fitted wooden case -- 7in. (17.5cm.) diameter

A Jeppesen Sanderson PJ-1 Plotter, the Ebbco combined station pointer and distance off calculator and navigational protractor, various parallel rulers to include a vintage example, Rundel and Harding examples and a brass parallel ruler.

Tray of assorted items to include: Franklin Mint 'The Imperial Puppy of Satsuma'; model Nao porcelain figure of a girl; Melba ware; Toby jug; ruler and protractor set in original box; table barometer etc.

Leather cased Watts of London No. 122705 sighting/surveying device and leather cased surveyors protractor

A large cased planimeter, a cased Hilger & Watts glass 15" scale, cased Reifler protractor, two small cased planimeters (one by Stanley), a cased beam compass and two cased attachments for beam compasses.

A 6" brass protractor by The TONE ENG. Co Birmingham 1917 with Broad Arrow with numerous scales (Jay Gaynor collection) G+

Major Gunter's Field Searching 6" ivory Protractor No 29600 with Scale of Shades on the reverse (Jay Gaynor collection) G

A 6" brass swing arm protractor in orig velvet lined case F

An early 6 1/2" French brass protractor with decorated bar and engraved L'ing'r (engineer) Chevalier Opticiendu Roi Place du Pont Neuf 15 a Paris G++

Major Gunter's 6" ivory Field Sketching Protractor by A & NCS Lim'd G++

AN ENGLISH BRASS 9 INCH PROTRACTOR BY WILLIAM WILTON, 1830-51 engraved on the crosspiece W Wilton St Day Cornwall, in the original octagonal laburnum box ++In good condition, lid of the box slightly warped but not split

A mahogany writing slop with fitted interior, tooled green leather, ivory finials to interior boxes and brass escutcheon, 45 by 26 by 13cm, together with various writing and mathematical implements, including a brass protractor and a pair of compasses.

A brass surveyor's theodolite and protractor, mahogany case with paper label, All Saint's, Derby

A fine boxed protractor set in rosewood case, manufacturer A G Thornton

A GROUP OF 18TH & 19TH CENTURY SCIENTIFIC INSTRUMENTS including a timber cased protractor set dated 1765, a shark skin cased geometry set, a cased mercury thermometer etc.

Antique Ivory protractor rule by Aston & Mander

A 18th Century Folding Protractor Map Frame, with brass hinges and stamped numbers, chip to one corner

Collection of approximately twenty-five mostly measuring related items, including a Kern GK1-A (in case), two chartometers (one in box), a A. C. Thornton Ltd protractor (in mahogany box), a tape measure by John Rabone & Sons, etc.

A late 18th century 360º brass protractor with rotating Vernier calibrated scale, by J. Carter Oldham, 8" diameter

A tan leather cased surveyor's tape, by Chesterman, with brass fittings, together with a cased set of balance scales and a wooden protractor, (3).

BRASS PARALLEL RULE, by J. Halden and Co. Ltd. 24" (61cm) long, ANOTHER 18" (45.8cm) unbranded AND A CIRCULAR BRASS PROTRACTOR by J. Halden and Co., 12" (30.5cm) diameter, all in mahogany boxes (3)

A 1950's American Warren Knight Co. steel engineering protractor, mahogany cased

19th century circular brass protractor, by Davies, Leeds, the circular protractor with single beam, 20.5cm wide

Navigator's black shagreen covered etui case, early 19th century, containing an ivory sector, ivory protractor/Gunter's rule, ivory proportional rule, brass dividers with six alternative arms, overall length 17cm.

Navigator's black shagreen etui case, early 19th century, initialled RA on the tablet, containing: modern brass protractor, boxwood sector by T Bolton, boxwood proportional rule, brass dividers with five supplementary arms, small dividers, overall length 15cm.

A W. H. Brown & Co. Circular Protractor, signs of heavy use

Ø A LACQUERED CIRCULAR PROTRACTOR BY TROUGHTON & SIMMS, CIRCA 1840 of typical form signed on the radius as per title with hinged compass point and glass with central + sight line, contained within original fitted box -- 7¼in. (18.5cm.) wide; together with a late 19th-century T. & H. Doublet drawing set, the top tray apparently complete with compass, pen, divider etc; the lower tray with protractor, divider and other accessories, contained in original plush lined case -- 8in. (20.7cm.) (2)

A Russian early 19th. century draughtsman's large bevelled brass protractor incorporating graduated scales , signed O. Rikhter, St. Petersburg. Length 22cm.

An unusual 5 1/4" boxwood Sandhurst Protractor by STANLEY London with brass weight in orig leather case (Jay Gaynor collection) G+

An unusual brass protractor with 7 1/2" swinging arm (Russell collection) G+

A 6" nickel silver protractor by T.ALTENEDER Phil. marked U.S.C.E. (Jay Gaynor collection) G+

An exceptionally large 24" brass protractor by POTTER London (1847-90) in orig fitted mahogany case G++

A 2' four fold ivory architects rule by RABONE with German silver fittings, protractor hinge and inside bevel edges G++

A 6" ivory COMPTON Protractor No 27 in Miles and Kilometres (Jay Gaynor collection) G++