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Mr Bensley's Machine

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Mr Bensley's Machine.png Thomas Curson HansardThumbnailsThe Spectroscope, an Instrument for Analysing LightThomas Curson HansardThumbnailsThe Spectroscope, an Instrument for Analysing LightThomas Curson HansardThumbnailsThe Spectroscope, an Instrument for Analysing LightThomas Curson HansardThumbnailsThe Spectroscope, an Instrument for Analysing LightThomas Curson HansardThumbnailsThe Spectroscope, an Instrument for Analysing LightThomas Curson HansardThumbnailsThe Spectroscope, an Instrument for Analysing Light