Mathematics

Case for protractor, semi-circular, by Jones

1900-1930

Set of Marquois scales for drawing parallel lines

1868

"The slide rule and how to use it" by Charles Hoare, 1868, with slide-rule in tuck of cover

Folding square, brass, engraved "Canivet a La Sphere a Paris", B1745, A158560

One of three Excise Officer's slide rules, each rule has four slides, one on each face of the rule

One of three pairs of single-handed steel dividers ( B979, A2914).

Mahogany case for Semicircular brass protractor by William Wilton

1701-1733

Oak case for brass circle of proportion with rotating central planisphere

Combination compasses with dividers and ivory scale: in small pocket case, (clasps missing)

One pair of folding or Napier compasses, electrum with steel points, folded length 2 1/2-inch extended length 4-inch

Case for circular slide rule, by Alfred Apps, London

Six inch protractor, engraved "Ring a Berlin" (probably 18th century)

Kelsey Draughtsman's Universal Square and protractor, complete with base

Bennett patent compasses in red-lined case, J F Bennett patentees, Sheffield

1925-1927

Comptometer by Felt and Tarrant Manufacturing Co., Chicago, USA 8-column sterling controlled key duplex model, No. J 260216, c. 1927

1876

Stereoscope, wood

Set of ten wooden polyhedra and solids, in box

1871-1876

Set 32 stereoscopic cards illustrating descriptive geometry, by Julius Schlotke, published by L. Friederichsen & Co., Hamburg, 1871

1998

Cross cap in glass, 1998.

Model of a surface whose horizontal sections exhibit double points; the points are all conjugate points lying on semi-cubical parabola in a vertical plane

1950-1960

Hamann Elma electric calculating machine, by DeTeWe Communications GmbH, Berlin, Germany, 1950-1960

1920-1933

Mercedes calculating machine, circular type, with explanatory pamphlet, Zella-Hehlis, Thuringen, Germany

Adall circular calculator with spiral groove hundreds counter, in fitted box, stylus missing

1910

Parabaloid by Alexander Brill

Dissected Cone, 8-inch base. In pine wood

1950-1955

Demonstration piece form Brunsviga calculating machine by Brunsviga Maschinenwerke AG, Braunschweig, Germany, c.1950

Plaster model to illustrate the succession of forms which a vibrating string takes when its first form is a broken line; after Monge

Miniature Boy's surface with six loops, 1998.

1991-1995

Puzzle Patch number picture puzzle, an educational toy by Product Sales International, USA, c.1991.

circa 1904

Callender cable calculating machine, patented 1902, and manufactured by R.W. Paul

1670-1699

Twenty-nine Napier's brass rods in tin case, (two of the rods signed 'Geo Brown'), by George Brown, Scotland, 1670-1699. From the Library of the Lord Napier and Ettrick (see note).

1930-1945

Educational toy, Bradley's New Number Builder game, an arithmetic toy by Milton Bradley Co., Springfield, Massachusetts, USA., 1930-1945

2000

One of eighteen uniform polyhedra card models illustrating non convex antiprisms with ratios of 6/3. Made to order for the Science Museum by David M. R. Roberts.

1986-1987

Polyhedron model showing the icosahedron and one of its 58 stellations, by John L. Hudson, Nottingham, England, United Kingdom, 1986-1987

One of eighteen uniform polyhedra card models illustrating non convex antiprisms with ratios of 9/4. Made to order for the Science Museum by David M. R. Roberts.

Catalan collection of semi-regular polyhedra: double pyramid, in plaster

Catalan collection of semi-regular polyhedra: enneacontadohedron, in plaster. (90 faces)

1910-1940

Finger-operated mechanical adding machine.

Catalan collection of semi-regular polyhedra: polyhedron, in plaster

Catalan collection of semi-regular polyhedra: tesseracontaoctahedron, in plaster

Rolling-sphere planimeter made by G. Coradi, Zurich, No.928, contained in velvet-lined box

1924-1930

Plastic slip case for Quixsum Fractional Adding Machine,by Precision Adding Machine Co. Inc.