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Title: Glass scale division demonstration, British, 1919-1922 [Go to resource]
Description: Museum demonstration of glass disc marked with circular division scale and viewing telescope, by E. R. Watts & Son, London, England, 1918-1922. License: http://creativecommons.org/licenses/by-nc-sa/2.5/ Subjects: angular scale - component
model - representationTemporal: 1918-1922 Source: Science Museum Creator: E. R. Watts & Son Identifier: 1946-218 Go to resource More Like this...
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