General Information

Serial #

N/A

Part Number

1

Total Parts

5

AKA

N/A

Patents

N/A

General Description

Brass body (includes arm and various pts.). Glass prism and viewfinder.

Dimensions

Note: These reflect the general size for storage and are not necessarily representative of the object's true dimensions.

Length

45.5 cm

Width

25.3 cm

Height

11.5 cm

Thickness

N/A

Weight

N/A

Diameter

N/A

Volume

N/A

Lexicon

Group

Physics

Category

Light & electromagnetic radiation

Sub-Category

N/A

Manufacturer

AKA

Browning

Country

England

State/Province

Unknown

City

London

Context

Country

Unknown

State/Province

Unknown

Period

Unknown

Canada

Not known.

Function

Arm of a table microscope in which a prism and slit are mounted to permit the comparison of the source spectrum with a known spectrum and to allow the measurement of the wavelength of observed lines.

Technical

One arm of a 3-arm table spectrograph similar to 1994.0431. The slit and small prism within the tube appeared in the late 19th century and allowed a known spectrum to be compared with the unknown source and to allow the measurement of the wavelength of observed spectral lines within the unknown spectrum.

Area Notes

Unknown

Details

Markings

Markings on .001 read: 'John Browning London'; Lens case .002 reads: 'Agent C. Baker 244 High Holborn, London Apochromat 4.0mm Apert. 0.95 Carl Zeiss Optische Werkstate. Jena'. Lens case .003 reads: 'Agent C. Baker 244 High Holborn, London Apochromat 16.0mm Apert 0.30 Carl Zeiss Optische Werkstate. Jena'.

Missing

Lenses for cases. From CA of 12/28/2001 by Matthew Bruce: No - appears complete

Finish

Shiny polished surface. .004 Black.

Decoration

N/A