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Spiders web

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johnbaxter | 19:16 Fri 02nd Jun 2006 | Quizzes & Puzzles
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A guide for an optical instrumentthat was first made for a telescope in1640 using spiders web
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how about graticule


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Sorry gen2 ,looking for R???c?e

reticle (same thing)


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Thanks

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Spiders web

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