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Astikorrekt & case Optikgerate View |
Axiometer William Gowlland Ltd Early 20th c. View |
Cone (Prism) Test Lens Mid 20th c. View |
five trial lenses / stenopaeic slits 20th c. View |
Halberg Trial Clip and a Mallett Near Distance cell Keeler; Theodore Hamblin Ltd 1980s View |
Half-Frosted Disc Ellis Optical Company Mid 20th c. View |
loose trial lenses View |
loose trial lenses View |
loose trial lenses View |
loose trial lenses View |
Priestley Smith Keratometer Trial Lens Ellis Optical Company Mid 20th c. View |
Stenopaeic slit disc with handle Mid 20th c. View |
Stigmat Telescopic Testing Unit Stigmat Ltd Mid 20th c. View |
Trial Contact Lens set Belgravia Optical Company Ltd 20th c. View |
20th c. View |
20th c. View |
20th c. View |
two trial lens hand frames & case 20th c. View |