burning glass
1780-1800
Two cork and one wood framed polari-scope lenses
Plano-convex lens in mount
Lens on adjustable arm
1850-1924
Three lenses
1760-1850
Convex lens
1760-1850
Plano-convex lens in mount
Convex lens in mount
1780-1850
Two convex lenses
1760-1850
Convex lens in mount
Convex lens
1760-1850
Plano-convex lens in cylindrical mount
Glass lens in threaded mounting cell
1800-1850
Two concave and one convex lens
1760-1850
Plano-convex lens mounted in flange
Plano-convex lens mounted in flange
Four crown glass convex lenses
Lenses in mounts
Convex lens in slide holder
1750-1800
Convex lens in circular mount
1760-1850
Automatic triplet lens
Convex lens
Green glass lens
Convex lens in mount
Six lenses of varying size and type
Two lenses in circular box
Model: showing concave lens virtual image
1752-1755
Lens polisher
concave lens
1790-1819
1 Convexo convex lens
1790-1819
Reading glass magnifying lens in horn frame
1701-1750
lens for USAAF Aircraft camera, type K20, 1940-1945
1940-1945
Condenser Lens
1920-1930
'The International' Folding Bellows Tailboard Field or Stand Camera, Case and Three Book Form Double Darkslides.
1887
Corygon Anastigmat lens F.6.3
circa 1932
Symmetrical Lens
Cooke Anastigmat Lens F.4.5 6" f.l.
circa 1924
Kodak Anastigmat F3.5 50mm Lens
circa 1939
Dallmeyer anastigmat lens F.8
circa 1920
Rapid Rectilinear Lens
circa 1910
Rapid Symmetrical Lens
circa 1880
Tessar F.3.5 59mm Lens
circa 1948
Brass Mounted Lens
Rapid Rectilinear Lens
circa 1900
R & J. Beck Ltd 7.2 inch Isostigmar f7.7 Lens
Landscape Lens
circa 1890
Symmetrical Lens F.8 8" f.l.
circa 1910
Aldis anastigmat lens F.7.7
circa 1920
Taylor Taylor & Hobson Brass mounted lens
circa 1880