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Moon: circa late 19th century

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Fragment : undated

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Spectra: 3 April 1877

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Spectra: undated

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Solar Spectrum?: 26 March 1879

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Draper's New York Home or Naval Observatory in Washington, DC: undated

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Spectra : undated

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Spectra : undated

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Spectra : undated

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Fragment : undated

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Spectra : undated

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Spectra : undated

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Fragment: undated

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Spectra: undated

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Spectra: undated

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Spectra: undated

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Spectra: undated

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Spectra: undated

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Spectra: undated

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