The apparatus is probably made by Krüss company. DataInventory Number: OPT12Date: 1880 (c.)Dimensions: Length : 22cm, Height : 43cm, Diameter : 13.5cmMaker: KrüssInstrument 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