Beck binocular compound microscope
Datecirca 1885
Inventory Number1273
ClassificationMicroscope
Subject
Maker
R. & J. Beck
1865 - 1920
Cultural Region
Place of Origin
Dimensions36 × 14.7 × 27.5 cm (14 3/16 × 5 13/16 × 10 13/16 in.)
Material
Accessoriesobjectives (3); paired oculars
DescriptionThis is a Beck binocular compound microscope. The heavy brass instrument sits on a flat tripod-shaped base. The binocular draw tubes are adjustable by rack and pinion in the body tubes. The binoculars are attached to a revolving triple nosepiece equipped with three objectives (only two of them are by R. & J. Beck). Fine adjustment is by a knob located on top of the arm.
There is a circular stage with an aperture and an ivory-tipped screw for the slide holder. Substage equipment includes a parabolic reflector, iris diaphragm, holder for stops, and a mirror on an adjustable arm.
There is a circular stage with an aperture and an ivory-tipped screw for the slide holder. Substage equipment includes a parabolic reflector, iris diaphragm, holder for stops, and a mirror on an adjustable arm.
Signedon revolving nosepiece: R. & J. Beck, LTD.
on base: R & J. BECK LONDON
Inscribedon objective: sold by Clarkson, London, WC1
on base: 12139
ProvenanceDavid Wheatland purchased from Roux-Devillas Paris, September 29, 1967 (lot 8/21). Donated to CHSI October 14, 1967.
R. & J. Beck
Date: 1876
Accessories: Beck patent substage condenser (1122c); apertometer (1122d)
Object number: 1122b
R. & J. Beck
Date: 1876
Accessories: oculars (2) in microscope; Darker's selenite retarding filters (3); wheel diaphragm; mechanical rotary stage; stage slider. Other accessories are in the case (1122b), including monocular draw tube; oculars (3); objectives in cans (5); empty can; Lieberkühn; polarizing set; slides; camera lucidas (2); etc.; plus a Beck patent substage condenser (1122c); and apertometer (1122d).
Object number: 1122a
R. & J. Beck
Date: circa 1890
Accessories: paired oculars; objective 16mm ; analyzer in mount; polarizer in mount; mechanical stage
Object number: 1328
R. & J. Beck
Date: circa 1884
Accessories: oculars (2); double nosepiece; mahagony case with various parts (see description)
Object number: 1083
R. & J. Beck
Date: circa 1878
Accessories: oculars (3); eye mask; Beck objectives with cans (2): 1, 1/6 in.; anonymous onjective: 1/15 in homog. im..; tweezers; triple nosepiece; Rousselet-type sliding stage; Abbe condenser; iris diaphgragm; cover slips (2); prescription envelope; instructions; lock parts; standing case with key.
Object number: 1362
Smith, Beck & Beck
Date: circa 1860
Accessories: complete set of approximately 50 accessories in two boxes [see early file card]
Object number: 1237
R. & J. Beck
Date: circa 1907
Accessories: eyepiece telescope to magnify image
Object number: 1122d
R. & J. Beck
Date: before 1889
Accessories: objective with canister; oculars (2); vertical illuminator attachment with iris and adjustable mirror; polarizer (analyzer missing); small leather case; extra coaxial illuminator mirrors (5)
Object number: 1204a
R. & J. Beck
Date: before 1889
Accessories: objective with canister; oculars (2); vertical illuminator attachment with iris and adjustable mirror; polarizer (analyzer missing); small leather case; extra coaxial illuminator mirrors (5)
Object number: 1204b
R. & J. Beck
Date: circa 1879
Accessories: objective 2 in. Ross No. 20372 in original case; empty case for 1.5 in. objective R&J Beck; ocular
Object number: 1140