Spencer laboratory compound microscope
Date: circa 1916
Inventory Number: 1997-1-1894
Classification: Microscope
Subject:
Maker: Spencer Lens Company (1895 - 1945)
Inventor: Ernst Abbe (1840 - 1905)
Cultural Region:
City of Use:
Dimensions:
microscope: 30 × 11 × 17.5 cm (11 13/16 × 4 5/16 × 6 7/8 in.)
case: 40.5 × 18.5 × 21.5 cm (15 15/16 × 7 5/16 × 8 7/16 in.)
Accessories: Spencer objectives with canisters (3): 1.8, 4, 16 mm; anonymous oculars (3): 10x, 1, 3; Abbe condenser; substage mirror; standing case; key; blue filter
Description:
This is a Spencer compound laboratory microscope. It has a blackened horseshoe shaped base of cast iron, a monocular body tube with a draw tube that is graduated in millimeters. The arm has the handle built in. There is a revolving triple nosepiece. The coarse adjustment is by rack and pinion. The fine focus is by a graduated knob on top of the post that works on an internal lever. Both the fine and coarse adjustment knobs are red brass as is a strip on the arm.
There is a square stage with nickel stage clips. Beneath the stage is an Abbe condenser with iris diaphragm and ring for filters. It is moved up and down by means of a large vertical screw on the proper left. The mirror is on a swinging arm.
This instrument is accompanied by a standing wooden case with a key.
There is a square stage with nickel stage clips. Beneath the stage is an Abbe condenser with iris diaphragm and ring for filters. It is moved up and down by means of a large vertical screw on the proper left. The mirror is on a swinging arm.
This instrument is accompanied by a standing wooden case with a key.
Signedon foot: SPENCER LENS CO. / Buffalo, N.Y.
on key: S / L
on key: S / L
Inscribedon foot: 33449
on foot: Betz
on foot: Betz
ProvenanceGift of Mrs. Lillian T. Green in memory of her husband, Dr. William T. Green, 1992.