Triple bar horizontal spring clip eyeglass frame w
1893
Nickelled rigid clip eyeglasses with oval lenses
1893
'Strubin' cemented bi-focal spectacle lens
1891
NEMA cryptography machine type T-D
1945-50
Commemorative plate
1890
Receipt with letter heading. Arnold & Sons
1887
John Weiss & Son
1894
Thomas Walker & Son
1880
Mayer & Meltzer
1879
James N. Routledge
1887
Receipt with letter heading. Peter Rogers & Co
1889
Receipt with letter heading
1885
Print, steel engraving: Employment of a Balloon at the Battle of Fleurus
1879
Print, steel engraving. Blanchard's Descent
1879
Print, steel engraving: The destruction of Charles's Balloon
1879
Print, steel engraving: Charles's Balloon on its way to the Champ de Mars
1879
Print, steel engraving: The Wreck of the "Geant"
1879
Trade card: John Roach
1891
Carte de Visite photograph. Sir John Lubbock.
1888
Paperweight, souvenir of the Eiffel Tower
1889-1894
Photograph: 'Cellular kites 1894'
1894
photograph. balloon being inflated. 1885-1890.
1885-1890
photograph. balloon in desert setting. 1885-1890.
1885-1890
Photograph, deflated balloon
1885-1890
Photograph, balloon before flight being held by young men and boys
1885-1890
photograph. balloon in desert setting. 1885-1890.
1885-1890
photograph. balloon in desert setting. 1885-1890.
1885-1890
Admission ticket. Opening of the Tower Bridge
1894
One of 10 albumen photographs of railway bridges under construction in Sri Lanka
1878-1883
One of 10 albumen photographs of railway bridges under construction in Sri Lanka
1878-1883
One of 10 albumen photographs of railway bridges under construction in Sri Lanka
1878-1883
Grubb Sector microscope
1880-1890
Cambridge Instrument Co. "Round Compensator", 1890
1890
Crookes' tube for showing that cathode rays travel in straight lines
1879-1888
Crookes' tube for showing that heat is produced by cathode ray bombardment
1879-1888
Smallest size direct acting "Dolphin" feed pump
1884
Yost No 1 typewriter, c 1889.
circa 1889
Wooden model of footstep bearing for a water turbine
1890
Thermometer, fahrenheit with ring-shaped bulb
1880
Oil lamp for projecting work
1888
Cromwell's patent rotary positive pressure blower
1888
Concave Rowland diffraction grating on speculum metal
1894
diffraction grating on speculum metal, gra
1881
Hot-wire voltmeter
1893
Double chambered vacuum tube with separating wall pierced in two places
1891
Moving coil voltmeter
1894
Crompton cable-vulcanizing T.box
1894
Bronze handle, highly decorated, Romano-Egyptian
20-400
Gold leaf electrometer with sliding condenser
1886
Empire typewriter No.1, 1892, serial no.68107
1892