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Title: Two plane speculums by Lassell, with Lassell's M.S. directio [Go to resource]
Description: Two plane speculums by Lassell, with Lassell's M.S. directions License: http://creativecommons.org/licenses/by-nc-sa/2.5/ Subjects: metal mirrors
flat mirrors
components
astronomical instrumentsTemporal: 1840-1850 Source: Science Museum Creator: Lassell, William, 1799-1880 Identifier: 1923-466/1 Go to resource More Like this...
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