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Brass framed sounding quintant.
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Brass framed sounding quintant., result 1 of 1

Item Details
Open Artstor
Available to everyone
Title
Brass framed sounding quintant.
Sounding quintant with 6-inch radius limb; Sounding quintant with 6-inch radius limb, diamond-pattern anodized brass frame and silver inlaid scale marked -5? to
Work Type
Surveying
Date
1855-1865
Location
Poultry
Material
brass (copper, zinc alloy); cotton (fibre); ebony; felt; glass; iron; mahogany (wood); paper (fibre product); steel (metal)
Measurements
overall: 125 mm x 323 mm x 247 mm, 2.38kg
Description
Sounding quintant with 6-inch radius limb, diamond-pattern anodized brass frame and silver inlaid scale marked -5o to 195o (169o range), 30 arc-min. divisions' with silver vernier scales to 1 arc-min. with wooden handle and Mahogany keystone box containing in the lid a label for Henry Porter (successor to William Cary), made by (William) Cary, London, 1855-1865. Fitted with tangent and clamping screws at back of the index arm; no shades; index-glass and horizon glass with screw and capstan screws adjustment; Detached telescope, (78 mm large objective) erect image with bracket without adjustment. Accessories include Screw-on diaphragm for the telescope; adjusting key; adjusting pin and magnifying glass (missing).
ID Number
co52813
Source
Image and original data from Science Museum Group - https://collection.sciencemuseum.org.uk
Rights
The source metadata displayed in the Description field is released under a Creative Commons Attribution 4.0 license - https://creativecommons.org/licenses/by/4.0/. All other source metadata is released under Creative Commons Zero - https://creativecommons.org/publicdomain/zero/1.0/. The image is released under a Creative Commons Attribution-NonCommercial-ShareAlike 4.0 License - https://creativecommons.org/licenses/by-nc-sa/4.0/.
File Properties
File Name
large_SMG00177213.jpg
SSID
26409482

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