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3.5X magnifier

3.5X magnifier

Bausch & Lomb Optical Company
1937-1947
4.5-inch telescope objective

4.5-inch telescope objective

Bausch & Lomb Optical Company
circa 1900
Abbe-type microscope camera lucida

Abbe-type microscope camera lucida

Bausch & Lomb Optical Company
circa 1929
Abbe-type microscope camera lucida

Abbe-type microscope camera lucida

Bausch & Lomb Optical Company
circa 1929
Abbe-type microscope camera lucida

Abbe-type microscope camera lucida

Bausch & Lomb Optical Company
circa 1898
automatic laboratory microtome

automatic laboratory microtome

Bausch & Lomb Optical Company
1935-1945
ballast for carbon arc lamp

ballast for carbon arc lamp

Bausch & Lomb Optical Company
1950-1960
Balopticon lantern slide projector

Balopticon lantern slide projector

Bausch & Lomb Optical Company
1900-1920
Balopticon opaque and lantern slide projector

Balopticon opaque and lantern slide projector

Bausch & Lomb Optical Company
1900-1950
balopticon projection lantern

balopticon projection lantern

Bausch & Lomb Optical Company
1900-1920
Bausch Excelsior pocket dissecting simple microscope

Bausch Excelsior pocket dissecting simple microscope

Bausch & Lomb Optical Company
1874
Bausch Excelsior pocket dissecting simple microscope

Bausch Excelsior pocket dissecting simple microscope

Bausch & Lomb Optical Company
1874
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The Collection of Historical Scientific Instruments
Science Center, Room 371 • 1 Oxford Street
Cambridge, MA 02138 •chsi@fas.harvard.edu
p. 617-495-2779 • f. 617-496-5794
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