on Apr 4, 2017
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ORIGINAL ADAM HILGER, LTD LONDON SPECTROMETER CIRCA 19 TH CENTURY ?
Original pieces of what I believe to be a 19th Century Spectrometer or Spectroscope
This larger tube measures about 23” long, has a circumference of about 9” at its largest poit
It measures 7 ½” [ to 3 ½”] x 6” X 5 1/8”
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