Set of 12 trial lenses and a pair of trial frames, Europe, 1880-1920
1880-1920
Trial case
1890-1900
Lens trier
1805-1845
Set of 6 steel framed trial spectacles hinged together inside steel covers
1850-1920
Trial case containing over 250 lenses
Case of trial lenses
1880-1920
Set of 30 pairs of trial lenses
1890-1914
Trial case
1901-1970
Trial case
Trial case in wooden case
1831-1870
Sheaf of seven pairs of convex trial lenses
Square brown leather covered case containing 82 lenses and a pair of trial frames
1870-1920
Set of 6 semi circular lenses in black leather covered case
1880-1920
Trial case
1850-1930
Three pairs of sight testing spectacles in horn(?)
1850-1925
Set of 19 pairs of trial lenses
1880-1910
Set of 20 trial lenses
1890-1930
Pair of green tinted lenses in horn lorgnette frame
1850-1920
Set of sixteen lenses
1880-1920
Six pairs of sight testing frames(?) in horn holde
1700-1800
Rectangular leather covered case containing 25 lenses of assorted shape
1901-1930
Five sets of sight testing spectacles in horn(?) h
1850-1914
Blue-tinted trial lens
1891-1930
Turquoise tinted trial lens mounted in silver plated ring with handle
1891-1930
Trial case containing over 300 lenses and filters
Trial lens mounted in brass ring with handle
1891-1940
Pocket size trial case
6 pairs of testing lenses in horn holder
1850-1914
Set of 12 single trial lenses in lorgnette handle
1840-1920
Eight sets of sight testing spectacles in horn(?)
1850-1914
6 sets of sight testing spectacles in horn holder
1850-1914
5 sets of sight testing spectacles in horn holder
1850-1914
6 pairs of lenses for sight testing
1850-1914
Set of trial lenses
1870-1930
Graduated semicircular metal trial frames
1891-1910
Circular tinted lens
1891-1930
Pink tinted trial lens, English, 1851-1920
1851-1920
Yellow-tinted trial lens
1891-1940
Trial case
1844-1922
10 sets of sight testing lenses in bakelite(?) hol
1850-1914
8 sets of eye (sight) testing spectacles in horn holder
1850-1920
Eight sets of testing spectacles
1850-1914
Set of trial lenses
1890-1940
Set of trial lenses
1880-1930
6 sets of test lenses mounted in horn frame
1900-1950
2 green lenses
1891-1930
Oval yellow-tinted trial lens
1891-1930
Smoked square lens labelled "Crookes smoked"
1891-1930
Black painted brass trial lenses with central stenopaic slit
1890-1940
Green glass lens mounted in nickel-plated ring with handle inscribed Flenos
1891-1930