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Im a teacher and found this equipment clearing out my science storage room. Any idea what it is used for? Thanks!

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Looks like a spectroscope. Perhaps one for use with a diffrecation grating rather than a prism.

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  • $\begingroup$ One sees the grating. $\endgroup$
    – user137289
    Commented Feb 27, 2020 at 21:49
  • $\begingroup$ yes the light brownish parts are likely graduated in degrees to measure angles. $\endgroup$ Commented Feb 27, 2020 at 22:14

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