
Electrogalvanic amulet
1880-1900
Electrogalvanic amulet, Richardson's Magneto-Galvanic Battery, disc with heart at centre and 15 small discs arranged in a circle around it. Made of zinc, brass, copper, iron and nickel, no chain. Made by A.M. Richardson & Co., New York, USA, 1880-1900. Engraving on reverse side of heart says it was patented in U.S. Feb. 3, 1880, and registered in Canada Feb. 9, 1881. Note gap in outer ring around disc. Similar to A602763. See advert at http://www.bridgemanart.com/asset/375514/English-School-19th-century/Advertisement-for-'Richardson's-Magneto-Galvanic-B

The first Wheeler and Wilson sewing machine, 1866.
1866
Wheeler and Wilson lock stitch sewing machine, type No.1. The first machine with rotary hook and four motion feed patented by Allen B. Wilson 1851 and 1854, and made in 1866.

Electrogalvanic amulet
1880-1900
Electrogalvanic amulet, Richardson's Magneto-Galvanic Battery (or possibly a fake?), disc with cross at centre and 14 small discs arranged in a circle around it. Made of zinc, brass, copper, iron and nickel, with woven string instead of chain. Made by A.M. Richardson & Co., New York, USA, 1880-1900. Engraved on front of cross with two hearts radiating electric bolts, and on reverse side with 'PAT & RD US, GB, FRANCE, ITALY ETC.' Note gap in outer ring around disc. Similar to A602762.

Ophthalmoscope, brass with 24 lenses marked in brass discs
1890-1930
Ophthalmoscope, brass with 24 lenses marked in brass discs, handle probably not original, made by A. Cretes, French, 1890-1930

Urethrotome, by Charriere from the Bernard Collection
1831-1880
Urethrotome, by Charriere from the Bernard Collection, c. 1860

Nickel-silver catheter with tapering proximal curve
1851-1920
Nickel-silver catheter with tapering proximal curve, stylet in situ, gauge 10, c. 1890

Female catheter, conical with stilette, c. 1880
1851-1900
Female catheter, conical with stilette, c. 1880

Female catheter, conical with stilette, c. 1880
1851-1900
Female catheter, conical with stilette, c. 1880

Lithotomy or bladder catheter with bulbous ended proximal curve
1841-1910
Lithotomy or bladder catheter with bulbous ended proximal curve, fluted handle and stylet in situ, c. 1880

Lithotomy sound with short proximal curved bulbous end and cylindrical
1801-1920
Lithotomy sound with short proximal curved bulbous end and cylindrical, fluted handle, gauge 9, c. 1880

Suture, Depierris, for cleft palate
1850-1870
Suture, Depierris, for cleft palate, steel and nickel, from Charriere, Collin and Gentile collection, c. 1860

Radio broadcast receiver, c.1925
circa 1925
Marconiphone V2 radio broadcast receiver, c.1925.

Speculum, for opening mouth
1855-1875
Speculum, for opening mouth, nickel, by Collin of Paris, from Charriere, Collin and Gentile collection, circa 1865

Cautery, probably French
1801-1900
Cautery, probably French, steel, nickel silver and wood, probably 19th century

"Flexo" dividing file, steel, USA, 1885-1910
1885-1910
"Flexo" dividing file, steel, USA, 1885-1910

McCommac's stone sound
1831-1900
McCommac's stone sound, with short bulbous end and cylindrical handle, metal, c. 1880

Celluloid brooch
1870-1900
Celluloid brooch, in form of female hand holding a bouquet (roses and white berries). Ivory in colour with painted foliage pink flowers and green leaves. Nickel fixing pin glued to back..

Metal catheter with proximal curve, c. 1880
1851-1910
Metal catheter with proximal curve, c. 1880

Scoop for either lithotomy or removal of gall-stones
1801-1900
Scoop for either lithotomy or removal of gall-stones. Spoon-shaped blade, short shank and long slim wooden handle, c. 1860

Wheeler and Wilson lock stitch treadle powered button hole sewing machine head
1862
Wheeler and Wilson lock stitch treadle powered button hole sewing machine head, 1862.

Speculum, mouth, nickel and ivory
1860-1870
Speculum, mouth, nickel and ivory, by Collin of Paris, from Charriere Collin and Gentile collection, circa 1865

Twin-needle lock stitch sewing machine
1890
Twin-needle lock stitch sewing machine, model No D 12 by Wheeler & Wilson Manufacturing Co., Bridgeport, Connecticut, United States, 1890.

Electromagnetic machine
1900-1920
Electromagnetic machine, induction coil and 24 dry cells in wooden case, panel with rheostat, solenoid, terminals made by John Richerts, English, 1900-1920

Sling thermometer by L. Casella, 1871-1879
1871-1879
Sling thermometer by L. Casella, London, England, 1871-1879 - the "thermomètre fronde".

Mokume gane bowl made of copper and nickel
1990-1996
Mokumegane bowl made of copper and nickel (brown/silver with green interface) by Dr Ian Ferguson, Royal College of Art, 1990-1996.

Electromagnetic machine in rectangular wooden case
1920
Electromagnetic machine in rectangular wooden case, two panels cover battery compartment and induction coil, rheostat, reversing switch, solenoid, made by The Cavendish Electrical Co. Ltd., London, English, c1920, Great Portland Street

Silver plated tea infuser
Silver plated tea infuser, cylindrical body, flat base, perforated domed lid with a metal rod for suspension, English

Electromagnetic machine in rectangular wooden case
1890-1910
Electromagnetic machine in rectangular wooden case, induction coil with rheostat and 3 terminals, 2 electrodes and one electrode handle, no batteries, English, 1890-1910

Circular magnifying lens with nickle mount and folding handle
1930-1950
Circular magnifying lens with nickle mount and folding handle, made in England(?), 1930-1950

Moldacot pocket sewing machine, 1887.
1886-1887
Moldacot patent lockstitch sewing machine with accessories in tin case, by the Moldacot Pocket Sewing Machine Company, London, England, 1886-1887.

Twin-pan equal arm balance
1950-1970
Twin pan equal arm balance by Gallenkamp, England with notched steelyard counterpoise for fine adjustment in conjunction with normal weights.

Pouillet pyrheliometer,Stow's improved form, 1874.
1874
Stow's improved form of Pouillet pyrheliometer, 1874.

Aqueousmeter,Nicolle,1880.
1880
Nicolle aqueousmeter, c. 1880.

Bourdon's aneroid barometer
1850
Bourdon's aneroid barometer. Nickel case.

Glass-stoppered bottle containing nickel
1801-1892 (prepared)
Glass-stoppered bottle containing nickel, from a collection of specimens of elements bequeathed by Prince Louis Lucien Bonaparte, 1801-1892 (prepared)

Components from household items that have been electroplated. Made by Dulwich Plating
1996
Components from household items that have been electroplated. Made by Dulwich Plating, 1996

Cylindrical sample
circa 1929
Cylindrical sample, 150mm long and 22mm diameter, showing nickel-coated aluminium, made by Cowper Coles, c1929.

Assmann psychrometer by C. F. Casella
1919
Assmann psychrometer by C. F. Casella, 1919.

Samples of metallic elements
2019
Element samples, twelve plastic bottles containing metallic elements silicon, iron, silver, magnesium, nickel, zinc, copper, tin, tantalum, indium, niobium and molybdenum and accompanying card with QR code, featuring bilingual element names in English and Chinese. Designed by Jason K. K. Chan, made by the Department of Chemistry, Hong Kong University of Science and Technology, Clear Water Bay, Hong Kong, 2019

Nickel ear-ring
1890-1925
Nickel ear-ring, semi-circular pendant in the form of a wheel with spokes, arched loop to pass through lobe, evil eyes Algerian, 1890-1925

Urethral stricture dilator
1801-1910
Urethral stricture dilator, straight cylindrical with through drainage channel to tapered end, ivory handle, c. 1880

Urethral stricture dilator
1801-1900
Urethral stricture dilator, with proximal curve and ivory handle, through channel for drainage, gauge 7, c. 1860

Urethral sound
1801-1900
Urethral sound, with short proximal curve and grooved flat metal handle, gauge 8, c. 1860

Urethral sound straight olive ended with flat handle
1801-1900
Urethral sound straight olive ended with flat handle, c. 1860

Urethral probe and sound
1801-1900
Urethral probe and sound, with angled olive end, nickel, c. 1850

Female catheter, conical, with stilette, c. 1880
1851-1900
Female catheter, conical, with stilette, c. 1880

Nickel-plated catheter with proximal curve
1851-1930
Nickel-plated catheter with proximal curve, gauge 11, c. 1890

Urethral sound
1781-1881
Urethral sound, with proximal curve, and wooden handle, narrow gauge, c. 1800

Urethral stricture dilator
1801-1910
Urethral stricture dilator, cylindrical with trough channel to tapered end and ivory handle, circa 1880

Four models of engraved rollers for calico printing
Four models of engraved rollers for calico printing, patentee J. D. Mucklow, 1857 (20a, 20b, 20c, 20d). Mounted on board.