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Instrument case

1880-1920

Red leather case for glass prism

1845-1885

Brass framed repeating circle with case.

1815-1825

Mahogany case for planimeter patented 1904 by Connolly Brothers

Red leather case, for miniature spyglass

1801-1900

Pocket surgical instrument case

500 BCE-500 CE

Case for Micromap viewer, 1995-1998

1995-1998

Sextant by Jesse Ramsden with case

1770-1775

Brass framed octant with case.

1794-1801

Miniature spyglass telescope with boxwood case

1725-1735.

Spectrometer, fitted with replica of Rowlands grating

1905-1907

Wooden case with moulded bronze covering with five bronze surgical instruments

3000BCE-100CE

Decorated cylindrical instrument case

Medicine scale in fish skin case

1850-1920

Accessories case for microdensitometer, 1978

1978

Box for avoirdupois weights

1588

Dark grey fishskin case for spyglass telescope

1701-1800

Lid only of pocket surgical instrument case

500 BCE-500 CE

Leather case for glass demonstration prism

1701-1800

Leather case for cataract knives from opthalmic instrument set

1810-1850

Shagreen case for Volute compass

1760

Felt case for the largest of three double volvelles in brass

Case containing lancets and knife blades

1801-1930

Twelve inch astronomical quadrant by Bird

1760-1769

Brass framed sextant with case.

1775-1782

Prospect glass (spyglass)

1725-1735

Diamond-frame pattern sextant with case.

1845-1855

Brass quadrant with stand and case.

1771

Leather case for single opera glass

1800-1848

Red leather case lined with black velvet for spyglass

1831-1900

Pocket cylindrical surgical instrument case

500 BCE-500 CE

Copy of surgical instrument box

1901-1936

Surgical instrument case

1890-1910

Case for Bertrand type refractometer

1870-1893

Case, for four German hexagonal section measuring rods

1870-1880

Wooden thermometer case (thermometer missing)

1850-1924

Elaborately engraved lancet case

Mahogany box for Differential Screw Micrometer

1801-1811

Folding opera glasses, French patent, in velvet case

1850-1950

Leather spyglass case with side-opening

1800-1817

Instrument case, England, 1650-1700

1650-1700
Clock, recording, box, instr. case

Recording clock

1901-2000
Brass lacquered sextant with straight-bar-pattern, 24 pillar frame, polished brass limb, wooden handle with counterbalanced tripod pillar stand and mercury artificial horizon in wooden box, all by John and Edward Troughton, 136 Fleet Street , London, England, 1790-1800. Consists of brass 127° scale (-5° to 140°) with 20’ divisions and brass vernier (10”), three index-filter shades (red & green), two horizon filters (red & green), scale magnifier on 90mm swivelling arm. Fitted with threaded telescope bracket for sighting telescope (182mm – inverted image) with 2 extra draw tubes, 131mm sighting tube and other accessories. The fitted rectangular case has in the lid the trade card for J. & E. Troughton. The artificial mercurial horizon consisting of a rectangular wooden trough fitted in a tin tray and a brass-framed, roof-shaped cover with glazed side panels, unsigned, made later, 1845-55.

Brass framed sextant with stand, artificial horizon and case.

1790-1800
Pair of pocket field binoculars, 'Trieder Binocle' model, x3 power, in velvet lined leather case, by C. P. Goerz, Berlin, Germany, 1910-1926. Supplied by W. Gregory, 51 The Strand, London. Fitted with dual lens focus and side slide intra-ocular adjustment .

Pair of field binoculars with case

1910-1926
Single Opera Glass by Chevalier, with helical focussing, in leather case, Chevalier family, France, 1800-1848.

Single Opera Glass by Chevalier

1800-1848
Hand-held Asterioscope in brass mount in red leather morocco case, by Murray and Heath, 43 Piccadilly, London, England, 1850-1880. Consists of fine diffraction grating rulings on glass in rotating frame, thought to be an optical toy in the manner of the kaleidoscope.

Asterioscope in leather case

1850-1880
Surveyor's quintant invented by George Beck and made by M. Dawson, Plymouth, about 1780. Polished brass frame, a detached wooden handle. Signed on the index arm: M,, Dawson fecit | Plymo Dock No 6. Marked on the index arm: G. Beck Invt. Polished brass scale from -10° to 205° every 30', measuring to 193°. Brass vernier to 1', zero at the centre. The double-ended tangent screw and the clamping screw are on the back of the index arm. No shades. Two index glasses, adjustment by screws; adjustment of the horizon glass by two levers and a milled clamping screw. A partly silvered sight vane with a peephole is fixed next to the index glass; a second sight vane on a swivelling arm is fitted on the centre strut. In a shaped mahogany box.

Brass framed surveyor's quintant with case.

1775-1785
Case for telemeter, 1910-1934

Case for telemeter

1910-1934
Mahogany case (lock defective) 14"x5"x8" for petrological microscope by Voigt and Hochgesang, Gottingen.

Mahogany case (lock defective) 14"x5"x8" for petrological microscope by Voigt and Hochgesang

1860-1876
Repeating circle (Borda circle) made by Etienne Lenoir, Paris, France, about 1780. Circular polished brass frame, limb and fittings, a wooden handle. Signed on one of the struts: Lenoir AParis no. 53. Brass scale from 0° to 720° every 20'. Two brass verniers to 1', zeros at the right. The index arm carries the index glass; the telescope arm carries the horizon glass. The tangent screw is on the front of the index arm; the clamping screw is on the back. A second tangent screw and clamping screw are on the back of the telescope arm, at the objective end. Three detached index shades (all red); two detached horizon shades (red and green), all the shades are secured by thumb screws. Magnifier on a 60 mm swivelling arm. Index- and horizon-glass adjustment by square-headed screws and a detached key. Two bubble levels are fixed at a right angle on the front of the telescope arm. Telescope (170 mm), inverted image, two parallel cross-wires, is fixed on two telescope brackets, with perpendicular adjustment on both by rising-pieces and milled knobs. A round plane mirror (probably not original to this instrument), a diaphragm, an adjusting key, and a screwdriver. A square, fitted oak box with the remains of a leather carrying handle.

Borda type repeating circle with case.

1775-1785