burning glass
1780-1800
Nikon WC-E63 lens
Three lenses
1760-1850
Convex lens
1760-1850
Two convex lenses
1760-1850
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
Reading glass magnifying lens in horn frame
1701-1750
concave lens
1790-1819
Two cork and one wood framed polari-scope lenses
Plano-convex lens in mount
Lens on adjustable arm
1850-1924
1 Convexo convex lens
1790-1819
lens for USAAF Aircraft camera, type K20, 1940-1945
1940-1945
Aldis Anastigmat Lens
Symmetrical Lens
Kinoptik Apochromat Lens
Dagor Double Anastigmat Series III Lens
circa 1912
Ross Xpres Lens
Projection lens 10" f.l.
Brass mounted lens
circa 1880
Purlux Projection Lens
Anastigmat Lens.
circa 1920
Ross Xpres Lens
circa 1920
Kodak Anastigmat Lens
Bell and Howell Eymax Lens
Polluxar Anastigmat Lens
circa 1922
Cooke Anastigmat Lens F.4.5 6" f.l.
circa 1924
Petzval Portrait Type Lens F.4
circa 1880
Brass Mounted Llens
Kodak Anastigmat F3.5 50mm Lens
circa 1939
Lens.
Dallmeyer anastigmat lens F.8
circa 1920
Rapid Rectilinear Lens
circa 1910