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A fine and very little used 2` four fold architects ivory rule by NEGRETTI & ZAMBRA London with inside and outside bevel edges and German silver fittings and protractor hinge, with 20 different scales, 8 of which are marked in red, rarely seen in this condition F

A surveyor`s mid 19th Century brass 180° protractor by G Adams, London with 10° meridian scale, lower fixed arm and two swing arms, each with screw clamp, 61cm (24") wide and the original case

AN IVORY PENDANT fashioned as a telescope, a pair of compasses, protractor and books, under glass within a collet and suspended from a diamond set loop and hung on a belcher link chain in yellow metal, tests as gold

A Military brass protractor, early 20th century, by Cary Porter Ltd, 7 Pall Mall, London, SW, with engraved ring (8-180) inscribed H.L.R (5cm diameter), in a fitted mahogany case.

A 19th Century gilt lacquered brass 360 degree protractor, signed `Cary, London`, diameter approx 15.6cm.

A Stanley brass and ep 360 degree cartographers protractor with single arm, in original mahogany box with magnifying glass

A STANLEY LACQUERED BRASS ABNEY LEVEL WITH SILVERED PROTRACTOR AND VERNIER, LEATHER CASE WITH TORTOISESHELL MAGNIFYING GLASS C1915

Pencils, pens, stationery box, protractor etc

A Boxed Circa 1900 station pointer used for locating the position of ships, by the London manufacturers Henry Hughes & Son, comprising of a clear celluloid protractor graduated in degrees and three 14`` legs.

* WWI Propeller-Blade Souvenir. A laminated hardwood propeller-blade, c. 1918, well-patinated and polished formerly used as a decorative coat-hanger, length 42in (107cm), together with WWII Aviation Instruments & memorabilia. A group of mid 20th c. Navigation Accessories, 1940s-1960s, including AM Cockpit Lamp Mk.IA Ref. No. 5C/446, dash-panel compass No. 9030/KH1/54, Turn-and-Bank indicator, Dead-Reckoning Computer Mk.4B ref. No. 6B/2835, Navigational computer Mk.III H ref. No. 6B/250, Glider Kneeboard GB3, Douglas Combined Protractor, Pye Radio Intercom Set, an ammunition cartridge canister and related sundries, etc. (-)

A mahogany and brass beam compass, early 20th century,one metre long with brass insert calibrated in millimetres, with vernier adjusting zero point and opposing locking slide, in original pine box; with a full circle brass protractor in mahogany case.

A nickel plated brass protractor, Thomas Jones, London, early 19th century, the open half-circle with pivoted radius arm incorporating vernier and extension piece with straight edge, the frame signed `Thomas Jones, 62 Charing=Crofs, London`, in velvet lined mahogany box applied with a photographic label suggesting that the instrument belonged to William Becket (1770-1840) and was used at Reading during the time of the G.W.R. Railway building program, and was subsequently passed down his family.

A large late 19th century lacquered brass 360 degree folding twin arm protractor, by Troughton & Simms, in mahogany case, 8.5ins diam.

A large 19th century lacquered brass 360 degree twin folding arm protractor, by Dollond of London, in later softwood case, 8.25ins diam.

A large late 19th century lacquered brass 360 degree twin folding arm protractor, by J. Casartelli, Manchester, in later softwood case, 8.25ins diam.

A late 19th century lacquered brass 360 degree twin arm protractor, by Watson & Son, in mahogany case, with a plated Troughton & Simms protractor, in later softwood case, 9ins & 8ins diam.

An early 19th century lacquered brass 360 degree swing arm protractor, by Heath & Wing, The Strand, London, in fitted mahogany case, 6ins diam.

A 19th century lacquered brass 360 degree twin arm protractor, by Dollond of London, in fitted mahogany case, 6ins diam.

A 19th century lacquered brass 360 degree twin arm protractor, by Watkins, Charing Cross, London, in mahogany case, 6.25ins diam.

A brass lacquered 360 degree twin arm folding protractor, by Negretti & Zambra, in mahogany case, 6ins diam.

A 19th century lacquered brass 360 degree twin arm protractor, by Schmalcalder, 82 Strand, London, in fitted mahogany case, 6ins diam.

A late 19th century lacquered brass 360 degree twin arm protractor, by J. Foster, Toronto, in fitted mahogany case, 6.25ins diam.

A late 19th century lacquered brass 360 degree twin arm protractor, by Elliott, 268 High Holborn, London, in fitted mahogany case, 6ins diam.

A late 19th century lacquered brass 360 degree twin arm protractor, by Elliott Bros, 449 Strand, London, in mahogany case, 6ins diam.

An early 19th century ivory protractor, by W & T Gilbert, London, in morocco slip case, with a Stanley boxwood Sandhurst protractor and lead weight, in leather slip case, 6ins & 5.25ins

A 19th century 12 inch ivory military sketching rectangular protractor, by West, 41 Strand, London, with an assortment of ivory scales and rules

A collection of six 19th century straight edge instruments, to include an ivory sector and combination rectangular protractor, by J & W. E. Archbutt, a sector, a rectangular protractor by W & S Jones, and a double parallel rule

A group of three 19th century ivory and brass instruments, by Schmalcalder, comprising military style protractor, a parallel rule and an arch joint sector, with another parallel rule by Humbert and three rolling rulers by Elliott,

A rare George III brass single arm 360 degree plotting protractor, by Ramsden, in original mahogany case engraved Ramsden, London, 6ins

A 19th century brass single arm 360 degree protractor, by Cary, London, in original mahogany case, 13ins

A lacquered brass single arm 360 degree protractor, by C.T. Cooper, in mahogany case, 12.25ins

A 19th century brass 360 degree single arm protractor, by Spencer & Company, London, in mahogany case, 8.25ins

A 19th century brass 360 degree single arm protractor, by Heath of Plymouth, in mahogany case, 8.25ins

A 19th century brass 360 degree single arm protractor, by W & S Jones, 30 Holborn, London, in a mahogany case, 7.5ins

A 19th century brass 360 degree single arm protractor, by W & S. Jones, Holborn, London, in mahogany case, 7.75in

A plated 360 degree twin arm protractor, by Stanley, in original mahogany case, with a single arm protractor by Stanley, 6ins & 9.25ins

A mid 19th century brass Douglas reflecting protractor, by Cary, patent no. 98, in original mahogany case, ex. Larry Grave collection, 5.5ins

A 19th century brass Douglas reflecting protractor, by Cary, patent no.338, in original leather case

A 19th century lacquered brass single arm folding protractor, by W. Youle, 86 Leadenhall St. London, in leather case, 6ins

A lacquered brass single arm protractor, by Negretti & Zambra, probably military issue, engraved W.D. between an arrowhead, no.2137, in mahogany case, 6.5ins

A 19th century lacquered brass Howlett protractor, by Troughton & Simms, engraved with the EIC logo and with fitted folding spy glass, in mahogany case, 6.75ins - case a.f.

A lacquered brass single arm vernier protractor, by Troughton & Simms, in mahogany case, 12ins

A lacquered brass single arm vernier protractor, by Troughton & Simms, in associated case, engraved with the EIC logo, 12.25ins

A lacquered brass single arm protractor, by Troughton & Simms, lacking spy glass, with another lacquered brass protractor, both in mahogany cases, 6.75ins

A late 19th century lacquered brass single arm protractor, by Troughton & Simms, in a mahogany case, with another brass protractor by Elliott Bros, in associated case, 6ins & 6.75ins

A mid 19th century brass 360 degree protractor, by Cail, Newcastle Upon Tyne, with original retailers label and annotations in pencil of places used, in mahogany case, 9ins

A 19th century brass 360 degree protractor, by Andrew Ross & Co, 33 Regent Street, Piccadilly, in mahogany case, 8ins

A 19th century lacquered brass 360 degree protractor, by Alfred Apps, 433 Strand, London, with original makers label, in mahogany case, 8ins

A 19th century plated 360 degree protractor, by John Archbutt, Bridge Road, Lambeth, in original mahogany case, and a larger unsigned brass protractor, in associated case, 9.75ins & 12ins

A 19th century lacquered 360 degree protractor, by J. Casartelli, Manchester, with a later protractor, by Reynolds of Birmingham, both with original cases, 11.75ins & 12ins

A 19th century brass 9 inch 360 degree protractor, by Cary of London, with an assortment of other 19th century and later protractors, all unboxed

An ivory slide rule signed Dicas Patentee, Liverpool, a brass bound ivory slide rule and a brass protractor signed B Martin, London (3).

A mahogany cased brass protractor, signed Stanley, Great Turnstile, Holborn, London, diameter 31cm.

An oak cased set of drawing instruments circa 1900, by Jackson Bros. Ltd., Leeds & Armley, containing nickel plated and ivory handled instruments, plus an ebony and brass parallel rule by Harling Ltd., 10.5 x 6.75in. (26.5 x 17cm.), together with a smaller oak cased set by J. Coombes, Devonport, with similar contents plus a boxwood protractor rule, 8 x 5.25in. (20.5 x 13.5cm.) and two part-complete rosewood cased sets. (4)

Four Victorian mahogany cased draughtsman`s instrument sets containing a variety of brass, plated and ivory/bone handled instruments, including an Army & Navy set with ivory sector, ivory protractor rule and boxwood rules, French curve and Marquois scales, 14.25 x 5.25in. (36 x 13.5cm.), a second Army & Navy set with boxwood rules and Marquois scales, 14 x 5in. (35.5 x 12.5cm.), a set with the ivory handles stamped `Harling`, 10.75 x 7in. (27.5 x 18cm.) and an Elliott Bros. of London set with ebony rolling parallel rule, 13.5 x 5in. (34.5 x 12.5cm.). (4)

Four Victorian drawing instrument sets comprising a Stanley set in a leather case, 6.5 x 4.75in. (16.5 x 12cm.), a smaller Stanley set, 7.25 x 3in. (18.5 x 7.5cm.), and an Adie of Westminster set, 7.75 x 5.5in. (19.5 x 14cm.), all three containing nickel plated and ivory instruments, plus a smaller leather cased set with brass protractor and plated instruments. (4)

A little used French 7 7/8" two fold ebony rule with German silver fittings with protractor hinge marked H & A BREVETES and Double Decimetre F

A little used RABONE No 1190 3` four fold combination boxwood rule with level and protractor hinge G++

An unused boxwood and brass combination inclinometer with folding sights, compass, 2 level vials, protractor hinge and Rise and Fall tables in orig lined box N

A little used CHAPIN STEPHENS boxwood and brass combination inclinometer, rule, square, level with protractor G++