Spencer no. 26LG Greenough-type stereoscopic compound microscope
Date: circa 1946
Inventory Number: 2004-1-0336
Classification: Microscope
Subject:
Maker: Spencer Lens Company (1895 - 1945)
Maker: American Optical Company (1833-present)
Owner: Leland C. Wyman (1898 - 1988)
Place of Origin:
Dimensions:
microscope: 9 × 20 × 14 cm (3 9/16 × 7 7/8 × 5 1/2 in.)
case: 32.3 × 20 × 27.5 cm (12 11/16 × 7 7/8 × 10 13/16 in.)
Material:
Accessories: oculars (2 pair): 9x, 15x; objectives (3 pairs): 1x, 4x, 8x; user manual; blue filter; case with key
Bibliography:
Spencer Scientific Instruments
Spencer Scientific Instruments
Description:
This is a Spencer No. 26LG stereoscopic compound microscope with an inclined binocular body. It has a rectangular glass stage (stage clips missing), which also serves as the base. An ivory-colored metal plate slides in below the stage. The binocular body is attached to a curved arm that is carried by rack and pinion on an upright attached to the base. The oculars have thick, circular prism housings. They are inclined at a 22-degree angle and converge at 12 degrees. The circular, revolving nosepiece holds three paired objectives and has a metal knurled rim to facilitate rotation. Focus is by rack and pinion.
This instrument is accompanied by a standing faux leather case with the AO logo on the door and a key. The case holds a user manual, an extra pair of oculars, and a blue filter for a microscope illuminator (missing).
This instrument is accompanied by a standing faux leather case with the AO logo on the door and a key. The case holds a user manual, an extra pair of oculars, and a blue filter for a microscope illuminator (missing).
Signedon right prism housing: AO [in shield] / SPENCER
on objectives and case: AO [in shield]
on sticker inside case door: AMERICAN OPTICAL COMPANY / Scientific Instrument Division / Buffalo 15, N. Y.
on objectives and case: AO [in shield]
on sticker inside case door: AMERICAN OPTICAL COMPANY / Scientific Instrument Division / Buffalo 15, N. Y.
Inscribedon tag: PROPERTY OF / L. C. WYMAN / 5 FURNNAL ROAD / JAMAICA PLAIN / MASS.
on prism housing: 277974
on prism housing: 277974
Historical AttributesOwned by Dr. Leland C. Wyman, a professor of physiology and anthropology at Boston University, was a leading authority on the culture and history of the Navajo Indians.
Primary SourcesAmerican Optical Company, Spencer Scientific Instruments (Buffalo, NY: American Optical Company Scientific Instrument Division, 1946), 122-123.
American Optical Company, Spencer. Scientific Instruments (Buffalo: American Optical Company, Scientific Instrument Division, [1946]), 122-123.
American Optical Company, Spencer. Scientific Instruments (Buffalo: American Optical Company, Scientific Instrument Division, [1946]), 122-123.
ProvenanceLeland C. Wyman, Boston University.