File:Spectroscope use.jpg

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Spectroscope_use.jpg(438 × 331 pixels, file size: 13 KB, MIME type: image/jpeg)

by Doos

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current06:23, 11 September 2006Thumbnail for version as of 06:23, 11 September 2006438 × 331 (13 KB)Doos (talk | contribs)by Doos
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