Telescope by John Yarwell.
1685-1695
Telescope by Christopher Cock
1673
‘Visual glasses’ designed by Benjamin Martin
1756-1800
Pair of plastic National Health Service spectacles
circa 1950
Handheld reading lens and case
1680-1700
Refracting telescope with achromatic lens, made by the Dollond family
1760-1775
Telescope by John Marshall
1685-1695
Polarization demonstration material
Polarization demonstration material associated with Silvanus P. Thompson
Polarization demonstration material associated with Silvanus P. Thompson
Ten slabs of unannealed glass
1825-1835
Pair of Ross binoculars used in World War I
Marble-made peepshow in pedestal design
Instructions for "The Rainbow Cup" educational toy
1911-1930
Six waterhouse stops
1800-1950
Plate cut from tourmaline uniaxial crystal
Plate cut from barytes biaxial crystal
Plate cut from celestine biaxial crystal
Photoectric cell c. 1915 (probably by GEC)
1910-1920
Two metal dies from plaster cast
1958
Nobili's metallic tints (metallochrome)
pre-1919
Photometric oil lamp
Two wax casts of moulds
1958
Magnifying glass on stand
Horn framed reading lens with trefoiled handle
1680-1700
Optician's trial set of lenses
Wollaston-type optometer
1825-1835
Screw barrelled microscope, rosewood, gilt brass stand
1680-1690
Large demonstration kaleidoscope on mahogany stand
1840-1860
Hawkseye eyepiece
Reading lens in wooden frame and handle
1650
Small model of eye
Glass prism with lugs, in shaped sharkskin case
1745-1755
Withering's botanic simple microscope
1790-1800
Improved Withering Botanic microscope
1790
Pocket 'Flower' microscope with leather case
1815-1825
Ladies spectacles; Tura aluminium frame
Ladies spectacle frame
Stereoscopic viewer
Ladies spectacles; American frame plastic bifocal lenses
Pair of folding bow spectacles
Exgovernment inra-red detector
Tank periscope
Opera glasses with five telescopic draws
Set of 'Spofa' Czechoslovakian soft contact lenses in sealed ampoules
Periscope used in the trenches
Solution for use with "menicon o"2 contact lenses
Camera obscura
1845-1855
Kaleidoscope, turned ivory body
1840-1860