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Title: Shagreen on parchment telescope, non-achromat, c1750 [Go to resource]
Description: Shagreen on parchment telescope, non-achromat, c1750 License: http://creativecommons.org/licenses/by-nc-sa/2.5/ Subjects: telescope - refracting Source: Science Museum Identifier: 1982-1752 Go to resource More Like this...
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