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Title: Wheatstone's Helio-chronometer, 1876-1899 [Go to resource]
Description: Wheatstone's Helio-chronometer, in case, Elliott Brothers, London, England, 1876-1899 License: http://creativecommons.org/licenses/by-nc-sa/2.5/ Subjects: equinoctial sundial Temporal: 1876-1899 Source: Science Museum Creator: Elliott Brothers Identifier: 1921-816 Go to resource More Like this...
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