A device similar to the ordinary spectrophotometer but containing particular modifications to provide for the comparison of two sources DataInventory Number: OPT02Date: 1890 (c.)Dimensions: Length : 72cm, Height : 35cmInstrument Categories: Optics PlacesLocation: Μουσείο Φυσικών Επιστημών και Τεχνολογίας, Πανεπιστήμιο Αθηνών - Museum of Science and Technology, University of AthensOrigin: Πανεπιστήμιο Αθηνών - Φιλοσοφική Σχολή / University of Athens - Faculty of Philosophy