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fused bifocal lens 1950s? View |
View |
Mid 20th c. View |
Mid 20th c. View |
Mid 20th c. View |
20th c. View |
20th c. View |
20th c. View |
Glass cube Late 20th c. View |
glass low vision lens Theodore Hamblin Ltd Mid 20th c. View |
Glass telescopic units c.1960 View |
Green tinted lens & envelope Mid 20th c. View |
Mid 20th c. View |
Hamblin DistanceTelescopic Trial Set Theodore Hamblin Ltd c.1928 View |
Hard Coated Hard Resin Lens Anglo Italian Optical Limited March 1999 View |
Hard Coated Hard Resin Lens and envelope Anglo Italian Optical Limited Late 20th c. View |
Hard Resin Lens Anglo Italian Optical Limited Late 20th c. View |
Harry Potter Magic Lens Essilor 2001 View |
Hi-Quartz and Multicoated Demonstration lenses Hoya Lens UK Ltd 1980s? View |
Mixom (maker) 20th c. View |
Mixom (maker) 20th c. View |
20th c. View |
Hoya 20th c. View |
Hoya 20th c. View |
View |
20th c. View |
Hoya Mirror lens demonstration kit Hoya Lens UK Ltd 2010s View |
Hoya PNX Demonstration lenses Hoya Lens UK Ltd c.2010s View |
Hoya Retinex Demonstrator Hoya Lens UK Ltd Late 20th c. View |
20th c. View |
20th c. View |
20th c. View |
Late 1970s/early 1980s View |
Igard lenticular lens Combined Optical Industries Ltd Mid 20th c. View |
II Bio 60D - Double Aspheric Bio Lens Volk Late 20th c. View |
Impact Testing Demonstration lens Raphael's Ltd 1979 View |
View |
View |
View |
View |
Kollmorgen telescopic trial set Kollmorgen Optical Corporation 1952 View |
Kollmorgen telescopic units Kollmorgen Optical Corporation 1952 View |
Kryptok Patent Bifocal Early-mid 20th c. View |
L.V.A. 10 C series low vision auxiliary lens unit Keeler Mid 20th c. View |
L.V.A. 10 C series low vision auxiliary lens unit Keeler Mid 20th c. View |
L.V.A. 9 non-illuminated low vision lens Keeler Mid-late 20th c. View |
Sola Pilkington c.1979-1993 View |
View |
Hoya Lens UK Ltd 20th c. View |
large magnifying lens View |
Lederer microscopes c.1953-1954 View |
Lederer-type microscopes (Stigmagna lenses) Stigmat Ltd Late 1950s View |
Axcy View |
20th c. View |
Guilbert-Routit & Cie 20th c. View |
20th c. View |
20th c. View |
20th c. View |
20th c. View |
lens & envelope American Optical Company Late 20th c. View |
lens & envelope American Optical Company Late 20th c. View |
lens & envelope United Kingdom Optical Company Ltd Late 20th c. View |
lens & lens envelope Nortic Optical Co Ltd Mid 20th c. View |
lens attachment set Carl Zeiss (Jena); Dunscombe & Partners 1930s? View |
lens attachment set Carl Zeiss (Jena) View |
lens baton no. 100 "Greenish and Reddish" Mirsche? & Swither View |
lens baton no. 101 "Purple Smokes" Pilkington; Crookes, William; M. Wiseman & Company Ltd View |
lens baton no. 103 "Greenish Smokes" View |
lens baton no. 105 "Reddish-Brown Smokes" View |
lens baton no. 107 "Neutral Grey Smokes" View |
lens baton no. 108 "Neutral Grey Smokes" View |
lens baton no. 109 "Slightly-smoked brown-green" Hallauer View |
lens baton no. 111 "Brownish Green" View |
lens baton no. 112 "Chlorophylls or Fieuzal etc." View |
lens baton no. 113 "Euphos" View |
lens baton no. 115 "Amber-Greens" View |
lens baton no. 116 "Hygett" Hygett View |
lens baton no. 117 "Grass-Greens" View |
lens baton no. 118 "Grass-Greens" View |
lens baton no. 120 "Emerald Greens" View |
lens baton no. 121 "Lemon-Ambers" View |
lens baton no. 124 "Brownish Ambers" View |
lens baton no. 125 "Brownish Ambers" View |
lens baton no. 127 "Brownish Ambers" View |
lens baton no. 129 "Signal Peacock Green (Spectrum Green)" View |
lens baton no. 131. View |
lens baton no. 132 "Blue" View |
lens baton no. 133 "Amethyst" Crookes View |
lens baton no. 135 "Crookes Experimental" Crookes View |
lens baton no. 137 "Crookes" Crookes View |
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